Help me. i am new to java.

my question is
how do i create a size K of array, which there are two variable in side it?
the following example is in c
struct rr
int a;
int b;
rr c[k];
how do i open a file?
how do i read the data in the file to that array?
suppose that there are two numbers per line.

the doc does not show what i want
so can any one give me an example?
thxlets say you want an array of 5 of them
class rr {
   int a, b;
class RRarray{
   int k = 5;
   rr array[] = new rr[k];

Similar Messages

Plz help me I'm new to java

I've created simple data base in sql and a simple html page,here is the code:
<%@ page import="java.util.*" import="java.sql.*" %>
<%!
private String emp_code, emp_name, emp_dept, emp_title, emp_doj, emp_dob;
private String error, info, create;
private short age;
private Statement stmt;
%>
<%
//load the JDBC driver
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection conn = DriverManager.getConnection("jdbc:odbc:Master","","");
Statement s = conn.createStatement();
s.executeUpdate("insert into employee_info values('" + emp_code + "', '" + emp_name + "','" + emp_dept + "','" + emp_title + "', '" + emp_doj + "','" + emp_dob + "') ");
System.out.println ("It has been successfully added");
%>
<HTML>
<HEAD>
     <TITLE> ---: New Employee Information :--- </TITLE>
</HEAD>
<BODY>
<DIV ALIGN="center">
     <H2> New Employee Information </H2></DIV>
<DIV ALIGN="center">
     <p> � </p></DIV>
     <FORM METHOD = "POST" ACTION = "NewEmp.jsp">
<H4>Employee Code: <INPUT TYPE= "text" NAME = "first1" SIZE = "17">��
Name: <INPUT TYPE = "TEXT" NAME = "first" SIZE = "51">��
<font size="3">Title:�<SELECT name="Grade">
<OPTION SELECTED> - Select -
<OPTION >Programmer
<OPTION >Technetion
<OPTION>System Analyst
<OPTION>Network Administrator
</SELECT>�</font>
          </H4>
<H4><font size="3">�</font>
          </H4>
<H4><font size="3">Department Code:�</font><select name="Dept">
<OPTION SELECTED> - Select -
<OPTION >IT
<OPTION >Admin
<OPTION>MGM
<OPTION>CSD
<OPTION>SM
<OPTION>FIN
</SELECT>
��
<font size="3"><b>DOB: </b> </font> <INPUT TYPE = "TEXT" NAME = "first2" SIZE = "18">��
<b><font size="3">DOJ: </font></b><INPUT TYPE = "TEXT" NAME = "first3" SIZE = "18">
          </H4>
<p>�
          </p>
<P align="center">
<INPUT TYPE = "SUBMIT" VALUE = "Submit">
<INPUT TYPE = "RESET">
<input type="button" value="Cancel" name="Cancel" onClick='javascript:window.close();'> </FORM>
<p align="center">�</p>
</BODY>
</HTML>
But I couldn't complete it or make the connection to the database, I want to fill in the blanks and then add it to the data base.
My database name is doctrak and the table name is employee_info and below the design of the table :
emp_code     char     10
emp_name char     30
emp_dept     char     15
emp_title     char     10
emp_doj     datetime     8
emp_dob     datetime     8
I've installed the apatchi tomcat 401 and make the java environment.
So plz can any one help me in that?
Thanks

But I don't know how to handel the code, I didn't
study JSP or Java. I'm trying to learn it by doing
this, so please can you write the code for me in jsp
and how to put it in html then , how to do the
connection to my database?Iam sorry to disappoint you, but no.
If you are new to java and jsp taking up such a task to learn it is not ideal, nor
viable. I would suggest you learn the basics of the language first, then the basics
of jsp, then some jdbc and finally graduate to the example in question. There are
excellent tutorials avbl for all on the net.
Maybe someone else would even post the code here, but suggest you dont
waste time waiting on it.
All the best.
Cheers,
ram.

Pls help, i m totally new to java

Hi everyone, i m new to java, i have created a page with a textfield and two buttons, can someone tell me how to pass the text that i input in the text field into my database (mysql) when i click the add button (id:addButton) and then how to retrieve a data from a column of my database when i click the show button (id:showButton)?
my table name is todolist3 and the column in my database is item.
Thank you very much!!!

if u are completly new to java, u must at least read some tutorials about java and later, the tutorial of Java Studio Creator, and if u have time, something about jsp.
i dont want to be rude, but listen my advice, if u want to make your "example" to work, u need to copy the mysql conector into core, this is inside of creator, create a data source to bind your project to mysql table, and the best part, send and receive data from your mysql database.
any doubt just post again
Belthazor

PLEASE PLEASE HELP! am really new to java

pls pls pls help me! this is my case study i have to pass it by friday, it is about CONVERTING NUMBERS TO WORDS everything seems to be ok but when i run the program and type number from 11 to 19, it shows " ten nine nineteen" for example it typed 1015 it will show One thousand ten five fifteen". please i don't know where else to ask.
import java.io.*;
public class Case4 {
     static InputStreamReader reader = new InputStreamReader(System.in);
     static BufferedReader vamp = new BufferedReader(reader);
public static void main(String[] args) throws Exception {
int thou=0,hund=0,get100=0,ten=0,get10=0,one=0,get1=0,teen=0,num=0,get11=0;
String ans = "";
System.out.println("Converting Numbers to Words");
System.out.println("PREFINALS CASE STUDY");
System.out.println();
do{
          thou=0;hund=0;get100=0;ten=0;get10=0;one=0;get1=0;teen=0;num=0;get11=0;
System.out.print("Enter Number: ");
num = Integer.parseInt(vamp.readLine());
if(num<19001) {
          thou = num/1000;
               switch (thou) {
case 1: System.out.print("One Thousand "); break;
case 2: System.out.print("Two Thousand "); break;
case 3: System.out.print("Three Thousand "); break;
case 4: System.out.print("Four Thousand "); break;
case 5: System.out.print("Five Thousand "); break;
case 6: System.out.print("Six Thousand "); break;
case 7: System.out.print("Seven Thousand "); break;
case 8: System.out.print("Eight Thousand "); break;
case 9: System.out.print("Nine Thousand "); break;
case 10: System.out.print("Ten Thousand "); break;
case 11: System.out.print("Eleven Thousand "); break;
case 12: System.out.print("Twelve Thousand "); break;
case 13: System.out.print("Thirteen Thousand "); break;
case 14: System.out.print("Fourteen Thousand "); break;
case 15: System.out.print("Fifteen Thousand "); break;
case 16: System.out.print("Sixteen Thousand "); break;
case 17: System.out.print("Seventeen Thousand "); break;
case 18: System.out.print("Eighteen Thousand "); break;
case 19: System.out.print("Nineteen Thousand "); break;
default: System.out.print("");break; }
get100 = num % 1000;
hund = get100/100;
switch (hund) {
     case 9 : System.out.print("Nine Hundred "); break;
     case 8 : System.out.print("Eight Hundred "); break;
     case 7 : System.out.print("Seven Hundred "); break;
     case 6 : System.out.print("Six Hundred "); break;
     case 5 : System.out.print("Five Hundred "); break;
     case 4 : System.out.print("Four Hundred "); break;
     case 3 : System.out.print("Three Hundred "); break;
     case 2 : System.out.print("Two Hundred "); break;
     case 1 : System.out.print("One Hundred "); break;
     default: System.out.print("");break;}
     get10 = get100 % 100;
     ten = get10 / 10;
     switch (ten) {
     case 9 : System.out.print("Ninety "); break;
     case 8 : System.out.print("Eighty "); break;
     case 7 : System.out.print("Seventy "); break;
     case 6 : System.out.print("Sixty "); break;
     case 5 : System.out.print("Fifty "); break;
     case 4 : System.out.print("Fourty "); break;
     case 3 : System.out.print("Thirty "); break;
     case 2 : System.out.print("Twenty "); break;
     case 1 : System.out.print("Ten"); break;
     default: System.out.print("");break; }
          get1 = get10 % 10;
          one = get1/1;
          switch (one) {
          case 9 : System.out.print("Nine "); break;
     case 8 : System.out.print("Eight "); break;
     case 7 : System.out.print("Seven "); break;
     case 6 : System.out.print("Six "); break;
     case 5 : System.out.print("Five "); break;
     case 4 : System.out.print("Four "); break;
     case 3 : System.out.print("Three "); break;
     case 2 : System.out.print("Two "); break;
     case 1 : System.out.print("one"); break;
     default: System.out.print("");break; }
     get11 = get100 % 100;
          teen = get11/1;
     switch (teen) {
     case 19 : System.out.print("Nineteen "); break;
     case 18 : System.out.print("Eighteen "); break;
     case 17 : System.out.print("Seventeen "); break;
     case 16 : System.out.print("Sixteen "); break;
     case 15 : System.out.print("Fifteen "); break;
     case 14 : System.out.print("Fourteen "); break;
     case 13 : System.out.print("Thirteen "); break;
     case 12 : System.out.print("Twelve "); break;
     case 11 : System.out.print("Eleven"); break;
     default: System.out.print("");break; }
     else
     {System.out.print("INVALID INPUTS!");}
          System.out.print("\n\nDo you want to convert another number(Y/N)?");
          ans = vamp.readLine();
     }while (!ans.equalsIgnoreCase("N"));
}

This one will work for all cases.
import java.io.*;
public class Case4 {
static InputStreamReader reader = new InputStreamReader(System.in);
static BufferedReader vamp = new BufferedReader(reader);
public static void main(String[] args) throws Exception {
int thou=0,hund=0,get100=0,ten=0,get10=0,one=0,get1=0,teen=0,num=0,get11=0;
String ans = "";
System.out.println("Converting Numbers to Words");
System.out.println("PREFINALS CASE STUDY");
System.out.println();
do{
thou=0;hund=0;get100=0;ten=0;get10=0;one=0;get1=0;teen=0;num=0;get11=0;
System.out.print("Enter Number: ");
num = Integer.parseInt(vamp.readLine());
if(num<19001) {
thou = num/1000;
switch (thou) {
case 1: System.out.print("One Thousand "); break;
case 2: System.out.print("Two Thousand "); break;
case 3: System.out.print("Three Thousand "); break;
case 4: System.out.print("Four Thousand "); break;
case 5: System.out.print("Five Thousand "); break;
case 6: System.out.print("Six Thousand "); break;
case 7: System.out.print("Seven Thousand "); break;
case 8: System.out.print("Eight Thousand "); break;
case 9: System.out.print("Nine Thousand "); break;
case 10: System.out.print("Ten Thousand "); break;
case 11: System.out.print("Eleven Thousand "); break;
case 12: System.out.print("Twelve Thousand "); break;
case 13: System.out.print("Thirteen Thousand "); break;
case 14: System.out.print("Fourteen Thousand "); break;
case 15: System.out.print("Fifteen Thousand "); break;
case 16: System.out.print("Sixteen Thousand "); break;
case 17: System.out.print("Seventeen Thousand "); break;
case 18: System.out.print("Eighteen Thousand "); break;
case 19: System.out.print("Nineteen Thousand "); break;
default: System.out.print("");break; }
get100 = num % 1000;
hund = get100/100;
switch (hund) {
case 9 : System.out.print("Nine Hundred "); break;
case 8 : System.out.print("Eight Hundred "); break;
case 7 : System.out.print("Seven Hundred "); break;
case 6 : System.out.print("Six Hundred "); break;
case 5 : System.out.print("Five Hundred "); break;
case 4 : System.out.print("Four Hundred "); break;
case 3 : System.out.print("Three Hundred "); break;
case 2 : System.out.print("Two Hundred "); break;
case 1 : System.out.print("One Hundred "); break;
default: System.out.print("");break;}
get10 = get100 % 100;
ten = get10 / 10;
switch (ten) {
case 9 : System.out.print("Ninety "); break;
case 8 : System.out.print("Eighty "); break;
case 7 : System.out.print("Seventy "); break;
case 6 : System.out.print("Sixty "); break;
case 5 : System.out.print("Fifty "); break;
case 4 : System.out.print("Fourty "); break;
case 3 : System.out.print("Thirty "); break;
case 2 : System.out.print("Twenty "); break;
//case 1 : System.out.print("Ten"); break;
default: System.out.print("");break; }
if(get10 >19)
    get1 = get10 % 10;
else
    get1 = get10;// % 10;
one = get1/1;
switch (one) {
case 19 : System.out.print("Nineteen "); break;
case 18 : System.out.print("Eighteen "); break;
case 17 : System.out.print("Seventeen "); break;
case 16 : System.out.print("Sixteen "); break;
case 15 : System.out.print("Fifteen "); break;
case 14 : System.out.print("Fourteen "); break;
case 13 : System.out.print("Thirteen "); break;
case 12 : System.out.print("Twelve "); break;
case 11 : System.out.print("Eleven"); break;
case 10 : System.out.print("Ten"); break;
case 9 : System.out.print("Nine "); break;
case 8 : System.out.print("Eight "); break;
case 7 : System.out.print("Seven "); break;
case 6 : System.out.print("Six "); break;
case 5 : System.out.print("Five "); break;
case 4 : System.out.print("Four "); break;
case 3 : System.out.print("Three "); break;
case 2 : System.out.print("Two "); break;
case 1 : System.out.print("one"); break;
default: System.out.print("");break; }
//get11 = get100 % 100;
//teen = get11/1;
//switch (teen) {
//case 19 : System.out.print("Nineteen "); break;
//case 18 : System.out.print("Eighteen "); break;
//case 17 : System.out.print("Seventeen "); break;
//case 16 : System.out.print("Sixteen "); break;
//case 15 : System.out.print("Fifteen "); break;
//case 14 : System.out.print("Fourteen "); break;
//case 13 : System.out.print("Thirteen "); break;
//case 12 : System.out.print("Twelve "); break;
//case 11 : System.out.print("Eleven"); break;
//default: System.out.print("");break; }
else
{System.out.print("INVALID INPUTS!");}
System.out.print("\n\nDo you want to convert another number(Y/N)?");
ans = vamp.readLine();
}while (!ans.equalsIgnoreCase("N"));
}

Please help! I am new with Java

I wrote a program of this problem but it won't run. I don't know why please help me. Thank you very much and here the problem: Define a Java class named NumberCruncher that has a single double value as its only instance variable. Then define methods that perform the following operations on its number: get, double, triple, square, cube. Thanks for reading my problem.

class NumberCruncher {
double single;
public static void main(String[] args) {
single = 20.0;
System.out.println("single double" + single);
System.out.println("times two" + single*2);
//Bla Bla

How can I open help file (HTML or .chm) from Java Web Start (new to JAVA)

Hi All,
Im trying to open the help file of my application.
When trying to access the help file from the GUI (pressing F1 for launching the help file), I'm geting the an error, something like:
"Can't show help URL: jar:file:C:\Documents and Settings\%USER%\Application Data\Sun\Java\Deployment\javaws\cache\http\Dlocalhost\P7001\DMwebstart\RMjar-name!/com/resources/helpFiles/MyHelpFile.html"
It seems that the file which is packed in a jar, was downloaded to the Java Web Start cache directory:
C:\Documents and Settings\%USER%\Application Data\Sun\Java\Deployment\javaws\cache\http\Dlocalhost\P7001\DMwebstart
The code which is activated when launching the help file is:
try
            ResourceBundle resourceBundle = DoubleResourceBundle.getBundle("Resource", "ResourceImpl");
            RuntimeUtil.launchFile(new File(resourceBundle.getString("help.file")));
        } catch (IOException e)
            // TODO Auto-generated catch block
            e.printStackTrace();
        }where the property "help.file" is in some property file in the resource bundle named "Resource", and looks like this :
help.file="com/trax/docs/help/global/MyHelpFile.html"
The function "RuntimeUtil.launchFile" knows how to launch any file in its default application, and indeed it does launches the html, when giving it an absolute path to the file on my PC, as "C:\Helpfiles\MyHelpFile.html" as such:
RuntimeUtil.launchFile("C:\Helpfiles\MyHelpFile.html");My question is :
The application is going to be deployed on a Customer PC. How can I access the html file from the code, with a relative path and not its absolute path on the customer pc, which I can't know?
I found these restrictions regarding web start:
(copied from "http://rachel.sourceforge.net/"):
*Rule 1: Java Archives only. No loose files.* All your resources have to be packaged in Java Archives (jar) if you want to have
them delivered to the user's machine and kept up-to-date automatically by Java Web Start.
*Rule 2: No file paths.* You can't use absolute or relative file paths to locate your
jars holding your resources (e.g. <code>jar:file:///c:/java/jws/.cache/resources.jar</code>).
Absolute file paths won't work because you never know where Java Web Start
will put your jar on the user's machine. Relative file paths won't work because Java Web Start
mangles the names of your jars (e.g. <code>venus.jar</code> becomes <code>RMvenus.jar</code>)
and every JNLP client implementation has the right to mangle your names
in a different way and you, therefore, can't predict the name with
which your jar will be rechristend and end up on the user's machine in
the application cache.Seems complex or impossible, to perform a simple task like opening a file.
Please advise (I'm new to Java and Web Start).
BTW, I'm working with IntelliJ IDEA 5.0.
Thanks,
Zedik.
{font:Tahoma}{size:26pt}
{size}{font}

the follwing method i have used to open html file ...
so to access html file i am shipping resources folder with jar file ..
private void openHtmlPages(String pageName) {
     String cmd[] = new String[2];
     String browser = null;
     File file = null;
     if(System.getProperty("os.name").indexOf("Linux")>-1) {
          file = new File("/usr/bin/mozilla");
          if(!file.exists() ) {
          }else     {
               browser = "mozilla";
     }else {
          browser = "<path of iexplore>";
     cmd[0] = browser;
     File files = new File("");
     String metaData = "/resources/Help/Files/"+pageName+".html"; // folder inside jar file
     java.net.URL url = this.getClass().getResource(metaData);
     String fileName = url.getFile();
     fileName = fileName.replaceAll("file:/","");
     fileName = fileName.replaceAll("%2520"," ");
     fileName = fileName.replaceAll("%20"," ");
     fileName = fileName.replaceAll("jarfilename.jar!"," ").trim();
     cmd[1] = fileName;
     try{
          Process p = Runtime.getRuntime().exec(cmd);
     }catch(java.io.IOException io){
               //Ignore
can anyone give me the solution..???
Regards
Ganesan S

New to Java and need help with this program..please!

I'd really appreciate any helpful comments about this program assignment that I have to turn in a week from Friday. I'm taking a class one night a week and completely new to Java. I'd ask my professor for help, but we can't call him during the week and he never answers e-mails. He didn't tell us how to call from other classes yet, and I just can't get the darn thing to do what I want it to do!
The assignment requirements are:
1. Change a card game application that draws two cards
and the higher card wins, to a Blackjack application
2. Include a new class called Hand
3. The Hand class should record the number of draws
4. The application should prompt for a number of draws
5. The game is played against the Dealer
6. The dealer always draws a card if the dealer's hand total is <= 17
7. Prompt the player after each hand if he wants to quit
8. Display the total games won by the dealer and total and the total games wond by the player after each hand
9. Display all of the dealer's and player's cards at the
end of each hand
10. Player has the option of drawing an additional card after the first two cards
11. The Ace can have a value of 11 or 1
(Even though it's not called for in the requirements, I would like to be able to let the Ace have a value of 1 or an 11)
The following is my code with some comments about a few things that are driving me nuts:
import java.util.*;
import javax.swing.*;
import java.text.*;
public class CardDeck
public CardDeck()
deck = new Card[52];
fill();
shuffle();
public void fill()
int i;
int j;
for (i = 1; i <= 13; i++)
for (j = 1; j <= 4; j++)
deck[4 * (i - 1) + j - 1] = new Card(i, j);
cards = 52;
public void shuffle()
int next;
for (next = 0; next < cards - 1; next++)
int rand = (int)(Math.random()*(next+1));
Card temp = deck[next];
deck[next] = deck[rand];
deck[rand] = temp;
public final Card draw()
if (cards == 0)
return null;
cards--;
return deck[cards];
public int changeValue()
int val = 0;
boolean ace = false;
int cds;
for (int i = 0; i < cards; i++)
if (cardValue > 10)
cardValue = 10;
if (cardValue ==1)     {
ace = true;
val = val + cardValue;
if ( ace = true && val + 10 <= 21 )
val = val + 10;
return val;
public static void main(String[] args)
CardDeck d = new CardDeck();
int x = 3;
int i;
int wins = 1;
int playerTotal = 1;
do {
Card dealer = (d.draw());
/**I've tried everything I can think of to call the ChangeValue() method after I draw the card, but nothing is working for me.**/
System.out.println("Dealer draws: " + dealer);
do {
dealer = (d.draw());
System.out.println(" " + dealer);
}while (dealer.rank() <= 17);
Card mine = d.draw();
System.out.println("\t\t\t\t Player draws: "
+ mine);
mine = d.draw();
System.out.println("\t\t\t\t\t\t" + mine);
do{
String input = JOptionPane.showInputDialog
("Would you like a card? ");
if(input.equalsIgnoreCase("yes"))
     mine = d.draw();
System.out.println("\t\t\t\t\t\t" + mine);
     playerTotal++;
     else if(input.equalsIgnoreCase("no"))
System.out.println("\t\t\t\t Player stands");
     else
System.out.println("\t\tInvalid input.
Please try again.");
I don't know how to go about making and calling a method or class that will combine the total cards delt to the player and the total cards delt to the dealer. The rank() method only seems to give me the last cards drawn to compare with when I try to do the tests.**/
if ((dealer.rank() > mine.rank())
&& (dealer.rank() <= 21)
|| (mine.rank() > 21)
&& (dealer.rank() < 22)
|| ((dealer.rank() == 21)
&& (mine.rank() == 21))
|| ((mine.rank() > 21)
&& (dealer.rank() <= 21)))
System.out.println("Dealer wins");
wins++;
     else
System.out.println("I win!");
break;
} while (playerTotal <= 1);
String stop = JOptionPane.showInputDialog
("Would you like to play again? ");
if (stop.equalsIgnoreCase("no"))
break;
if (rounds == 5)
System.out.println("Player wins " +
(CardDeck.rounds - wins) + "rounds");
} while (rounds <= 5);
private Card[] deck;
private int cards;
public static int rounds = 1;
public int cardValue;
/**When I try to compile this nested class, I get an error message saying I need a brace here and at the end of the program. I don't know if any of this code would work because I've tried adding braces and still can't compile it.**/
class Hand()
static int r = 1;
public Hand() { CardDeck.rounds = r; }
public int getRounds() { return r++; }
final class Card
public static final int ACE = 1;
public static final int JACK = 11;
public static final int QUEEN = 12;
public static final int KING = 13;
public static final int CLUBS = 1;
public static final int DIAMONDS = 2;
public static final int HEARTS = 3;
public static final int SPADES = 4;
public Card(int v, int s)
value = v;
suit = s;
public int getValue() { return value; }
public int getSuit() { return suit; }
public int rank()
if (value == 1)
return 4 * 13 + suit;
else
return 4 * (value - 1) + suit;
/**This works, but I'm confused. How is this method called? Does it call itself?**/
public String toString()
String v;
String s;
if (value == ACE)
v = "Ace";
else if (value == JACK)
v = "Jack";
else if (value == QUEEN)
v = "Queen";
else if (value == KING)
v = "King";
else
v = String.valueOf(value);
if (suit == DIAMONDS)
s = "Diamonds";
else if (suit == HEARTS)
s = "Hearts";
else if (suit == SPADES)
s = "Spades";
else
s = "Clubs";
return v + " of " + s;
private int value; //Value is an integer, so how can a
private int suit; //string be assigned to an integer?
}

Thank you so much for offering to help me with this Jamie! When I tried to call change value using:
Card dealer = (d.changeValue());
I get an error message saying:
Incompatible types found: int
required: Card
I had my weekly class last night and the professor cleared up a few things for me, but I've not had time to make all of the necessary changes. I did find out how toString worked, so that's one question out of the way, and he gave us a lot of information for adding another class to generate random numbers.
Again, thank you so much. I really want to learn this but I'm feeling so stupid right now. Any help you can give me about the above error message would be appreciated.

New to Java and need help with error message!

I have just installed the oracle jdbc driver and am now getting the following error message when trying to use the jbdc driver instead of the jdbc:odbc wrap driver...
See com.borland.dx.dataset.DataSetException error code: BASE+47
com.borland.dx.dataset.DataSetException: Chain of 2 or more Exceptions occurred
     at com.borland.dx.dataset.DataSetException.a(Unknown Source)
     at com.borland.dx.dataset.DataSetException.throwExceptionChain(Unknown Source)
     at com.borland.dx.sql.dataset.q.a(Unknown Source)
     at com.borland.dx.sql.dataset.Database.openConnection(Unknown Source)
     at com.borland.dx.sql.dataset.Database.createPreparedStatement(Unknown Source)
     at com.borland.dx.sql.dataset.o.a(Unknown Source)
     at com.borland.dx.sql.dataset.o.d(Unknown Source)
     at com.borland.dx.sql.dataset.o.f(Unknown Source)
     at com.borland.dx.sql.dataset.QueryProvider.e(Unknown Source)
     at com.borland.dx.sql.dataset.JdbcProvider.provideData(Unknown Source)
     at com.borland.dx.dataset.StorageDataSet.a(Unknown Source)
     at com.borland.dx.dataset.DataSet.a(Unknown Source)
     at com.borland.dx.dataset.DataSet.open(Unknown Source)
     at com.borland.dbswing.JdbTable.bindDataSet(JdbTable.java:2749)
     at com.borland.dbswing.JdbTable.setDataSet(JdbTable.java:819)
     at myframes.ClaimView.btnSQL_actionPerformed(ClaimView.java:279)
     at myframes.ClaimView_btnSQL_actionAdapter.actionPerformed(ClaimView.java:440)
     at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1786)
     at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1839)
     at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
     at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
     at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:245)
     at java.awt.Component.processMouseEvent(Component.java:5100)
     at java.awt.Component.processEvent(Component.java:4897)
     at java.awt.Container.processEvent(Container.java:1569)
     at java.awt.Component.dispatchEventImpl(Component.java:3615)
     at java.awt.Container.dispatchEventImpl(Container.java:1627)
     at java.awt.Component.dispatchEvent(Component.java:3477)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3483)
     at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3198)
     at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3128)
     at java.awt.Container.dispatchEventImpl(Container.java:1613)
     at java.awt.Window.dispatchEventImpl(Window.java:1606)
     at java.awt.Component.dispatchEvent(Component.java:3477)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:456)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
Chained exception:
javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
     at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:640)
     at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243)
     at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:280)
     at javax.naming.InitialContext.lookup(InitialContext.java:347)
     at com.borland.dx.sql.dataset.q.a(Unknown Source)
     at com.borland.dx.sql.dataset.Database.openConnection(Unknown Source)
     at com.borland.dx.sql.dataset.Database.createPreparedStatement(Unknown Source)
     at com.borland.dx.sql.dataset.o.a(Unknown Source)
     at com.borland.dx.sql.dataset.o.d(Unknown Source)
     at com.borland.dx.sql.dataset.o.f(Unknown Source)
     at com.borland.dx.sql.dataset.QueryProvider.e(Unknown Source)
     at com.borland.dx.sql.dataset.JdbcProvider.provideData(Unknown Source)
     at com.borland.dx.dataset.StorageDataSet.a(Unknown Source)
     at com.borland.dx.dataset.DataSet.a(Unknown Source)
     at com.borland.dx.dataset.DataSet.open(Unknown Source)
     at com.borland.dbswing.JdbTable.bindDataSet(JdbTable.java:2749)
     at com.borland.dbswing.JdbTable.setDataSet(JdbTable.java:819)
     at myframes.ClaimView.btnSQL_actionPerformed(ClaimView.java:279)
     at myframes.ClaimView_btnSQL_actionAdapter.actionPerformed(ClaimView.java:440)
     at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1786)
     at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1839)
     at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
     at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
     at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:245)
     at java.awt.Component.processMouseEvent(Component.java:5100)
     at java.awt.Component.processEvent(Component.java:4897)
     at java.awt.Container.processEvent(Container.java:1569)
     at java.awt.Component.dispatchEventImpl(Component.java:3615)
     at java.awt.Container.dispatchEventImpl(Container.java:1627)
     at java.awt.Component.dispatchEvent(Component.java:3477)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3483)
     at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3198)
     at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3128)
     at java.awt.Container.dispatchEventImpl(Container.java:1613)
     at java.awt.Window.dispatchEventImpl(Window.java:1606)
     at java.awt.Component.dispatchEvent(Component.java:3477)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:456)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
Here is the code causeing the error;
void btnSQL_actionPerformed(ActionEvent e)
try
String GET_DATASET = txtSQL.getText().trim();
Display("Executing...");
try
MyDisplayTable.setDataSet(null);
catch (DataSetException ex)
Display("ERROR 1: " + ex.toString());
try
queryDataSet1.close();
catch (DataSetException ex)
Display("ERROR 2: " + ex.toString());
try
queryDataSet1.setQuery(new com.borland.dx.sql.dataset.QueryDescriptor(
database1, GET_DATASET, null, true, Load.ALL));
catch (DataSetException ex)
Display("ERROR 3: " + ex.toString());
try
if (!queryDataSet1.isOpen()) {
queryDataSet1.open();
catch (DataSetException ex) {
Display("ERROR 5: " + ex.toString());
try {
queryDataSet1.refresh();
catch (Exception ex) {
Display("ERROR 5.5: " + ex.toString());
try {
Display("setDataSet");
MyDisplayTable.setDataSet(queryDataSet1);
Display("DONE setDataSet");
catch (DataSetException ex) {
Display("ERROR 6: " + ex.toString());
Display("Query: ' " + GET_DATASET.trim() + " ' was executed successfully");
catch (Exception ex)
Display(ex.toString());
Please let me know if more information is required. I am completely at a loss as to what more I need to do to get this to work using the new driver.
Thank you all in advance,
Malcolm Diaz
Application Developer
[email protected]
PlanVista Solutions Inc.
419 E.Main St.
Middletown NY 10940
845-346-2692

this is more of a jdbc question rather than an internationalization. You might be able to get more help if you post it in java programming section.

PLz Help New To Java

Hey im brand new to java and i just downloaded and installed jdk-1_5_0_01-windows-i586-p now im tryin to set up the PATH permanently but i have no clue how to i went to the install notes and typed in C:\Program Files\Java\jdk1.5.0_<windows>\bin in the command.com but everytime i do it says access is denied. i have no clue how to set up the path permanently beside what i tried plz help!!!

You didn't which OS you are running, but it's fairly similar for all windows.
Start->settings->control panel->system->advanced->environment variables
Go to System variables, click on path, click edit button and add a semicolon and the path at the end. DO NOT REPLACE EVERYTHING THAT'S THERE NOW.
I don't have 1.5 installed on this computer, but I'm willing to bet the real path doesn't have '<windows>' in it. Use Windows Explorer to find out where java.exe actually exists on the hard disk and use that path

Im new to java and hope somebody can help me with my question

Hi!
Im quite new to java and I just have some simple questions..
can someone please tell what kinds of error are considered as language violation for java? where can I find more info about these errors?
can someone give me a simple example on a kind of error that cannot be caught in both compilation and runtime? I hope someone can help me out. Thanks in advance!!

knightz211 wrote:
Im just asking about errors that might go against the language definition but cant be detected.. If it "goes against the language defintion," it will be detected by the compiler. That's half of the compiler's job is to tell you what you've done that violates the language spec.
because it confuses me when they say that such errors might occur so I just want to know what might these errors be.. sorry for that..Who's "they"? What exactly* did "they" say about "such errors"? It sounds to me like you're just confused, and you think there's something mysterious and inexplicable going on but you don't know what and don't even know what you're asking.
I would suggest not worrying about hypothetical problems that you can't even put into words and focussing on learning Java. Along the way, if you encounter real, specific, actual problems, ask about them, and you'll probably get answers about the problems themselves and the language or theory behind them.

Hi, i'm new to java. need help setting the path in win XP

hi all,
i'm new to java technology. i've just downloaded the JDK and ran my first java program (hello world). i love it. java's gr8. i need help. i run win XP and how can i setup the path sothat i can execute my programs from the root dir??? any help in this direction will be greatly appreciated. please email me @ [email protected]
Best regards
Mrinal

Go to Start menu and select Control Panel. In the Control Panel, double click on System. In the System dialogue, choose the Advanced tab. Then click on Environmental Variables. Select Path and Edit. Put ;c:\j2sdk1.4.0\bin at the end of the Path (or c:\j2sdk1.4.0\bin;) at the start of the Path. That's it.

Convert C++ prog into Java( I m new in java)help urgent

hi all,
i am very new in java. i have code of C++.i have to convert it in to Java.please help me on urgent basis.plz provide me solution.
I am looking for positive response.code is below:
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <fstream.h>
#include <iostream.h>
//#include <sha.h> //24112003
//#include<wincrypt.h>
char ntc(unsigned char n){
if (n<26) return 'A'+n;
if (n<52) return 'a'-26+n;
if (n<62) return '0'-52+n;
if (n==62) return '+';
if (n==63)return '/';
unsigned char ctn(char c){
if (c=='/') return 63;
if (c=='+') return 62;
if ((c>='A')&&(c<='Z')) return c-'A';
if ((c>='a')&&(c<='z')) return c-'a'+26;
if ((c>='0')&&(c<='9')) return c-'0'+52;
if (c=='~') return 80;
return 100;
int b64decode(char from,char to,int length){
unsigned char c,d,e,f;
char A,B,C;
int i;
int add;
char *tot=to;
for (i=0;i+3<length;){
add=0;
A=B=C=0;
c=d=e=f=100;
while ((c==100)&&(i<length)) c=ctn(from[i++]);
while ((d==100)&&(i<length)) d=ctn(from[i++]);
while ((e==100)&&(i<length)) e=ctn(from[i++]);
while ((f==100)&&(i<length)) f=ctn(from[i++]);
//if (f==100) return -1; /* Not valid end */
if (c<64) {
A+=c*4;
if (d<64) {
A+=d/16;
B+=d*16;
if (e<64) {
B+=e/4;
C+=e*64;
if (f<64) {
C+=f;
to[2]=C;
add+=1;
to[1]=B;
add+=1;
to[0]=A;
add+=1;
to+=add;
if (f==80) return to-tot; /* end because '=' encountered */
return to-tot;
int b64get_encode_buffer_size(int l,int q){
int ret;
ret = (l/3)*4;
if (l%3!=0) ret +=4;
if (q!=0){
ret += (ret/(q*4));
/* if (ret%(q/4)!=0) ret ++; */ /* Add space for trailing \n */
return ret;
int b64strip_encoded_buffer(char *buf,int length){
int i;
int ret=0;
for (i=0;i<length;i++) if (ctn(buf)!=100) buf[ret++] = buf [i];
return ret;
int b64encode(char from,char to,int length,int quads){
// 3 8bit numbers become four characters
int i =0;
char *tot=to;
int qc=0; // Quadcount
unsigned char c;
unsigned char d;
while(i<length){
c=from[i];
*to++=ntc(c/4);
c=c*64;
i++;
if (i>=length) {
*to++=ntc(c/4);
*to++='~';
*to++='~';
break;
d=from[i];
*to++=ntc(c/4+d/16);
d=d*16;
i++;
if (i>=length) {
*to++=ntc(d/4);
*to++='~';
break;
c=from[i];
*to++=ntc(d/4+c/64);
c=c*4;
i++;
*to++=ntc(c/4);
qc++; /* qz will never be zero, quads = 0 means no linebreaks */
if (qc==quads){
*to++='\n';
qc=0;
/* if ((quads!=0)&&(qc!=0)) to++='\n'; / /* Insert last linebreak */
return to-tot;
char* mEncryptPassword(char* mPassword)
char mEncryptedPassword[200]; // To hold encrypted password.
//char* mEncryptedPassword = new char[200];
char mPrimEncryptedPassword[200];
char * temp = new char[200];
//unsigned char* md; // 19122003
//md = new unsigned char[100]; // 19122003
memset(mEncryptedPassword, '\0', sizeof(mEncryptedPassword));
memset(mPrimEncryptedPassword, '\0', sizeof(mPrimEncryptedPassword));
strcpy(mPrimEncryptedPassword, mPassword);
//strcpy(mPrimEncryptedPassword, (char*) SHA1((unsigned char*) mPassword, strlen(mPassword), NULL));
//strcpy(mEncryptedPassword, (char*) SHA((unsigned char*) mPassword, strlen(mPassword), md)); // 19122003
//strcpy(mEncryptedPassword, (char*) SHA((unsigned char*) mPassword, strlen(mPassword), md)); //19122003
b64encode(mPrimEncryptedPassword, mEncryptedPassword, strlen(mPrimEncryptedPassword), 0);
// If successfully encrypts..
if (mEncryptedPassword != NULL)
//char * temp = new char[strlen(mEncryptedPassword)+1];
strcpy(temp,mEncryptedPassword);
// strcpy(mRetVal,mEncryptedPassword);
return (char*)temp;
//return (mEncryptedPassword);
//return (char*) md; // 19122003
else
return ("Error");
char* mDecryptPassword(char* mPassword)
char mDecryptedPassword[200]; // To hold decrypted password.
char mPrimDecryptedPassword[200];
char * temp = new char[200];
// 02032007
memset(mDecryptedPassword, '\0', sizeof(mDecryptedPassword));
memset(mPrimDecryptedPassword, '\0', 200);
strcpy(mPrimDecryptedPassword, mPassword);
b64decode(mPrimDecryptedPassword, mDecryptedPassword, strlen(mPrimDecryptedPassword));
// If successfully decrypts..
if (mDecryptedPassword != NULL)
//char * temp = new char[strlen(mEncryptedPassword)+1];
strcpy(temp,mDecryptedPassword);
// strcpy(mRetVal,mDecryptedPassword);
return (char*)temp;
//return (mEncryptedPassword);
//return (char*) md; // 19122003
else
return ("Error");
void main(int argc, char* argv[])
cout << mEncryptPassword(argv[1])<<endl<<flush;
cout << mDecryptPassword(mEncryptPassword(argv[1]))<<endl<<flush;
Anubhav

endasil wrote:
I just thought of how ridiculous this would sound in any other profession:
Surgeons:
plz plz help I have patient dying need to insert new kidney into 90yr old patient plz someone come do itLawyers:
Help client guilty need good defense (I m new in law)help urgentHow come we get stuck with the lazy low-lifes?Because there's no legal requirement that a software developer must be licensed

Very new to java please help

i'm very new to java and i'm getting an error in my application. i took 4 applications that compiled and worked separatly and i tried to combine them into one application. i'm getting the error: unreported exception java.io.IOException; must be caught or declared to be thrown, in lines 73,78,83,88,120,146,149,152,155 in the and it points at the keyboard.readLine() but everything i've tried just gives me more errors. please help anything and everything will be greatly appreciated. here it is, sorry about format i dunno how to straighten it in here:
// ^ ^
//               (0)(0) A Happy Piggy Application
// Problems: 2.6,2.8,2.9,2.12 (oo)
// An application finds the total number of hours, minutes, & seconds, finds the distance
// between two points, finds the volume and surface area of a sphere, and adds up the change
// in a jar. First, the total hours, minutes, and seconds problem.
import java.io.*;
import java.text.DecimalFormat;
import java.text.NumberFormat;
public class twoptsix
     static BufferedReader keyboard = new BufferedReader(new InputStreamReader(System.in));
     static PrintWriter screen = new PrintWriter(System.out, true);
     public static void main (String[] args) throws IOException
          double hoursa, minutesa, secondsa;
          String hours;
          System.out.print ("Please enter a number of hours: ");
hours = keyboard.readLine();
hoursa = Double.parseDouble(hours); //asks programmer friendly user to enter hours
String minutes;
System.out.print ("Please enter a number of minutes: ");
minutes=keyboard.readLine();
minutesa = Double.parseDouble(minutes); //asks programmer friendly user to enter minutes
String seconds;
System.out.print ("Pretty please enter a number of seconds: ");
seconds = keyboard.readLine();
secondsa = Double.parseDouble(seconds); //asks programmer friendly user to enter seconds
double allseconds;
allseconds = (hoursa * 3600) + (minutesa * 60) + secondsa; //adds up all the seconds of the time entered
System.out.println ("You have: " + hours + " hours..."); //displays hours
System.out.println ("" + minutes + " minutes..."); //displays minutes
System.out.println ("and " + seconds + " seconds..."); //displays seconds
          System.out.println ("to get whatever you need to done!"); //witty attempt at humor
System.out.println ("The total amount of seconds is: " + allseconds + " seconds."); //displays total seconds
// An application that finds the distance between two points when the points
// are given by the user.
          double x1, x2, y1, y2, total, distance;
          String xa;
          System.out.print ("Please enter the 'x' coordinate of first point: ");
          xa = keyboard.readLine();
          x1 = Double.parseDouble(xa); //asks programmer friendly user to enter first x value
          String ya;
          System.out.print ("...also need the 'y' coordinate of first point: ");
          ya = keyboard.readLine();
          y1= Double.parseDouble(ya); //asks programmer friendly user to enter first y value
          String xb;
          System.out.print ("...and the 'x' coordinate of the second point: ");
          xb = keyboard.readLine();
          x2 = Double.parseDouble(xb); //asks programmer friendly user to enter second x value
          String yb;
          System.out.print ("...don't forget the 'y' coordinate of the second point: ");
          yb = keyboard.readLine();
          y2 = Double.parseDouble(yb); //asks programmer friendly user to enter second y value
          total = Math.pow(x2 - x1, 2.0) + Math.pow(y2 - y1, 2.0); //squares the differences of values
          distance = Math.sqrt(total); //finds the square root of the sum of the differences of the values
          System.out.print ("E=mc^2...oh and,");
          System.out.print ("the distance between point (" + xa +"," + ya +") and point("+
          xb + "," + yb + ") is : " + distance);
// An application that takes the radius of a sphere and finds and prints
// the spheres volume and surface area.
          double radius,volume,area;
          String rad;
          System.out.print("Please enter the radius of a sphere: ");
          rad = keyboard.readLine();
          radius = Double.parseDouble(rad); //asks programmer friendly user to enter the radius of a sphere
DecimalFormat fmt = new DecimalFormat ("0.####");
          volume = ((4 * Math.PI * Math.pow(radius,3.0)) / 3) ;
          System.out.println (" The sphere has a volume of:" + fmt.format(volume)); //finds and displays volume
          area = ( 4 * Math.PI * Math.pow(radius, 2.0)) ;
          System.out.print (" The Surface Area of the sphere is: " + fmt.format(area)); //finds and displays surface area
// An application that finds the total, in dollars and cents, of a number of quarters,
// nickels, dimes, and pennies in your piggy bank.
          int pennies, nickels, dimes, quarters;
          double money1;
          screen.println("Empty your piggy bank and count the change, how many quarters ya have?: ");
          int q = (new Integer(keyboard.readLine())).intValue();//asks programmer friendly user to enter a number of quarters
          screen.println("How many dimes?: ");
          int d = (new Integer(keyboard.readLine())).intValue();//asks programmer friendly user to enter a number of dimes
          screen.println("How many nickels?: ");
          int n = (new Integer(keyboard.readLine())).intValue();//asks programmer friendly user to enter a number of nickels
          screen.println("How many pennies?: ");
          int p = (new Integer(keyboard.readLine())).intValue();//asks programmer friendly user to enter a number of pennies
          NumberFormat money = NumberFormat.getCurrencyInstance();
          money1 = (.25 * q) + (.1 * d) + (.05 * n) + (.01 * p);
          screen.println("You're rich! Total, you've got: " + money.format(money1));//finds and displays total money

Ok here is the working code as one long function:
// ^ ^
// (0)(0) A Happy Piggy Application
// Problems: 2.6,2.8,2.9,2.12 (oo)
// An application finds the total number of hours, minutes, & seconds, finds the distance
// between two points, finds the volume and surface area of a sphere, and adds up the change
// in a jar. First, the total hours, minutes, and seconds problem.
import java.io.*;
import java.text.DecimalFormat;
import java.text.NumberFormat;
public class twoptsix
    static BufferedReader keyboard = new BufferedReader(new InputStreamReader(System.in));
    static PrintWriter screen = new PrintWriter(System.out, true);
    public static void main (String[] args) throws IOException
double hoursa, minutesa, secondsa;
String hours;
System.out.print ("Please enter a number of hours: ");
hours = keyboard.readLine();
hoursa = Double.parseDouble(hours); //asks programmer friendly user to enter hours
String minutes;
System.out.print ("Please enter a number of minutes: ");
minutes=keyboard.readLine();
minutesa = Double.parseDouble(minutes); //asks programmer friendly user to enter minutes
String seconds;
System.out.print ("Pretty please enter a number of seconds: ");
seconds = keyboard.readLine();
secondsa = Double.parseDouble(seconds); //asks programmer friendly user to enter seconds
double allseconds;
allseconds = (hoursa * 3600) + (minutesa * 60) + secondsa; //adds up all the seconds of the time entered
System.out.println ("You have: " + hours + " hours..."); //displays hours
System.out.println ("" + minutes + " minutes..."); //displays minutes
System.out.println ("and " + seconds + " seconds..."); //displays seconds
System.out.println ("to get whatever you need to done!"); //witty attempt at humor
System.out.println ("The total amount of seconds is: " + allseconds + " seconds."); //displays total seconds
// } <----- MAIN FUNCTION USED TO END HERE!!!
//but we want to keep going so remove the bracket!
// An application that finds the distance between two points when the points
// are given by the user.
// { <-- other function used to start here, but now it continues
double x1, x2, y1, y2, total, distance;
String xa;
System.out.print ("Please enter the 'x' coordinate of first point: ");
xa = keyboard.readLine();
x1 = Double.parseDouble(xa); //asks programmer friendly user to enter first x value
String ya;
System.out.print ("...also need the 'y' coordinate of first point: ");
ya = keyboard.readLine();
y1= Double.parseDouble(ya); //asks programmer friendly user to enter first y value
String xb;
System.out.print ("...and the 'x' coordinate of the second point: ");
xb = keyboard.readLine();
x2 = Double.parseDouble(xb); //asks programmer friendly user to enter second x value
String yb;
System.out.print ("...don't forget the 'y' coordinate of the second point: ");
yb = keyboard.readLine();
y2 = Double.parseDouble(yb); //asks programmer friendly user to enter second y value
total = Math.pow(x2 - x1, 2.0) + Math.pow(y2 - y1, 2.0); //squares the differences of values
distance = Math.sqrt(total); //finds the square root of the sum of the differences of the values
System.out.print ("E=mc^2...oh and,");
System.out.print ("the distance between point (" + xa +"," + ya +") and point("+
     xb + "," + yb + ") is : " + distance);
//second function used to end here...
//} <--- COMMENT OUT BRACKET SO WE CONTINUE
// An application that takes the radius of a sphere and finds and prints
// the spheres volume and surface area.
//{ <--- ANOTHER ONE TO COMMENT OUT
double radius,volume,area;
String rad;
System.out.print("Please enter the radius of a sphere: ");
rad = keyboard.readLine();
radius = Double.parseDouble(rad); //asks programmer friendly user to enter the radius of a sphere
DecimalFormat fmt = new DecimalFormat ("0.####");
volume = ((4 * Math.PI * Math.pow(radius,3.0)) / 3) ;
System.out.println (" The sphere has a volume of:" + fmt.format(volume)); //finds and displays volume
area = ( 4 * Math.PI * Math.pow(radius, 2.0)) ;
System.out.print (" The Surface Area of the sphere is: " + fmt.format(area)); //finds and displays surface area
// } <----- COMMENTED OUT FOR THE SAME REASON
// An application that finds the total, in dollars and cents, of a number of quarters,
// nickels, dimes, and pennies in your piggy bank.
//{ <----AND ANOTHER
int pennies, nickels, dimes, quarters;
double money1;
screen.println("Empty your piggy bank and count the change, how many quarters ya have?: ");
int q = (new Integer(keyboard.readLine())).intValue();//asks programmer friendly user to enter a number of quarters
screen.println("How many dimes?: ");
int d = (new Integer(keyboard.readLine())).intValue();//asks programmer friendly user to enter a number of dimes
screen.println("How many nickels?: ");
int n = (new Integer(keyboard.readLine())).intValue();//asks programmer friendly user to enter a number of nickels
screen.println("How many pennies?: ");
int p = (new Integer(keyboard.readLine())).intValue();//asks programmer friendly user to enter a number of pennies
NumberFormat money = NumberFormat.getCurrencyInstance();
money1 = (.25 * q) + (.1 * d) + (.05 * n) + (.01 * p);
screen.println("You're rich! Total, you've got: " + money.format(money1));//finds and displays total money
}P.S. To make the code formatted better put [ code ] before and [ /code ] after. It's not perfect, but a little better...

New to java(need help on access specifier)

hi! i am new to java.plzzzzz help me i have to make a project on access specifier's i know all theroy.but
i am unable to understand how i can define all specifiers practicly.i mean in a program.
thanks.plzzzzzzzz help me

the most common project i can think of is a payroll system..
you can have real implementation of all the access specifiers
good luck

Help needed, new to java programming

hi,
I have craeted a Frame with some check boxes and button called "button1".
Can anyone tell me how can i count the number of CHECKED check boxes so that when i press the button1 in my code it should display the result as number of checked check boxes divided by total number of check boxes. It should display the result in a textfield here RESULT textfield in my code
Thanks in advance ...i am sending the code i have written so far....
public class Frame extends java.awt.Frame {
    /** Creates new form Frame */
    public Frame() {
        initComponents();
        setSize(600, 600);
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
    private void initComponents() {
        buttonGroup1 = new javax.swing.ButtonGroup();
        checkbox1 = new java.awt.Checkbox();
        checkbox2 = new java.awt.Checkbox();
        checkbox3 = new java.awt.Checkbox();
        button1 = new java.awt.Button();
        textField1 = new java.awt.TextField();
        setLayout(null);
        addWindowListener(new java.awt.event.WindowAdapter() {
            public void windowClosing(java.awt.event.WindowEvent evt) {
                exitForm(evt);
        checkbox1.setLabel("checkbox1");
        add(checkbox1);
        checkbox1.setBounds(160, 50, 84, 20);
        checkbox2.setLabel("checkbox2");
        add(checkbox2);
        checkbox2.setBounds(160, 70, 84, 20);
        checkbox3.setLabel("checkbox3");
        add(checkbox3);
        checkbox3.setBounds(160, 90, 84, 20);
        button1.setLabel("button1");
        button1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                button1ActionPerformed(evt);
        add(button1);
        button1.setBounds(150, 180, 57, 24);
        textField1.setText("Result");
        textField1.setName("Result");
        add(textField1);
        textField1.setBounds(260, 180, 44, 20);
        pack();
    private void button1ActionPerformed(java.awt.event.ActionEvent evt) {
        // Add your handling code here:
    /** Exit the Application */
    private void exitForm(java.awt.event.WindowEvent evt) {
        System.exit(0);
     * @param args the command line arguments
    public static void main(String args[]) {
        new Frame().show();
    // Variables declaration - do not modify
    private java.awt.Button button1;
    private javax.swing.ButtonGroup buttonGroup1;
    private java.awt.Checkbox checkbox1;
    private java.awt.Checkbox checkbox2;
    private java.awt.Checkbox checkbox3;
    private java.awt.TextField textField1;
    // End of variables declaration
}

Two problems in the code you repost-ed:
1. It lacks import statements.
2. There is an extraneous } at the end of the button1ActionPerformed method.
Correct them and it'll work fine. Posting the full source code:
import java.awt.Component;
import java.awt.Checkbox;
public class Frame extends java.awt.Frame
     /** Creates new form Frame */
     public Frame()
          initComponents();
      * This method is called from within the constructor to initialize the form.
      * WARNING: Do NOT modify this code. The content of this method is always
      * regenerated by the Form Editor.
     private void initComponents()
          checkbox1 = new java.awt.Checkbox();
          checkbox2 = new java.awt.Checkbox();
          checkbox3 = new java.awt.Checkbox();
          button1 = new java.awt.Button();
          textField1 = new java.awt.TextField();
          setLayout( null );
          addWindowListener( new java.awt.event.WindowAdapter()
               public void windowClosing( java.awt.event.WindowEvent evt )
                    exitForm( evt );
          checkbox1.setLabel( "checkbox1" );
          add( checkbox1 );
          checkbox1.setBounds( 120, 40, 84, 20 );
          checkbox2.setLabel( "checkbox2" );
          add( checkbox2 );
          checkbox2.setBounds( 120, 60, 84, 20 );
          checkbox3.setLabel( "checkbox3" );
          add( checkbox3 );
          checkbox3.setBounds( 120, 80, 84, 20 );
          button1.setLabel( "button1" );
          button1.addActionListener( new java.awt.event.ActionListener()
               public void actionPerformed( java.awt.event.ActionEvent evt )
                    button1ActionPerformed( evt );
          add( button1 );
          button1.setBounds( 50, 170, 57, 24 );
          textField1.setText( "textField1" );
          add( textField1 );
          textField1.setBounds( 240, 170, 60, 20 );
          pack();
     private void button1ActionPerformed( java.awt.event.ActionEvent evt )
          // Add your handling code here:
          Component[] components = getComponents();
          int numOfCheckBoxes = 0;
          int numChecked = 0;
          for ( int i = 0; i < components.length; i++ )
               if ( components[i] instanceof Checkbox )
                    numOfCheckBoxes++;
                    Checkbox checkBox = (Checkbox) components;
                    if ( checkBox.getState() )
                         numChecked++;
          double ratio = (double) numChecked / (double) numOfCheckBoxes;
          textField1.setText( Double.toString( ratio ) );
     /** Exit the Application */
     private void exitForm( java.awt.event.WindowEvent evt )
          System.exit( 0 );
     * @param args the command line arguments
     public static void main( String args[] )
          new Frame().show();
     // Variables declaration - do not modify
     private java.awt.Button button1;
     private java.awt.Checkbox checkbox1;
     private java.awt.Checkbox checkbox2;
     private java.awt.Checkbox checkbox3;
     private java.awt.TextField textField1;
     // End of variables declaration
I can see from the code that the GUI was generated by a tool. Since you're new to Java programming, I'd recommend ditching the tool and writing everything by hand, otherwise you're not learning much. It's just like when you're learning proofs in Maths, where you start with first principles before making use of the proofs on their own.
Also, it'll help tremendously if you could spend some time going through the Java Tutorial (http://java.sun.com/docs/books/tutorial/). It's free, and I find it very useful.
Hth.

Help me. i am new to java.

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