Need help on calculate
I need to calculate 3 numeric fields and have a "A" at the 4th textField.
example numericField1=40 numericField2=40 numericField3=20 and numericfield4 is the sum of 1, 2 and 3 so the total is =100 on numericfield4
if this total is 100 then the letter A has to be the value of TextField1
I did it this way on calculate - javascript
if (numericField3 > 90 && numericField3 <100) {
(TextField4 = "A");
Well somthing like that and work.
What I need and I have no Idea how to do it, is to have a more results(letter) like if the sum is between 70 and 89 the letter is B and if is between 50 and 69 the letter is C.
but also if numerifield1= to 35 then even if the total is between 90 and 100 the Letter change to B
here is why: NumericField1 corresponds to COLOR. NumericField2 corresponds to DEFECT. NumericField3 corresponds to CARACTER and NumericField4 corresponds to the total puntiation. if the puntuation is between 90 and 100 is a GRADE A product
but if the puntuation is between 90 and 100 but the NumericField1 is = to 35 then the result even is between 90 and 100 must be a letter B (or grade B)
I don't know if I did it clear. hope so and hope some one can help me.
Thank You
what if I need a value range colo_ field?
is this ok
//form1.page1.subform1.grade_::calculate - (JavaScript, client)
if (!(form1.page1.subform1.total_.rawValue == "" || form1.page1.subform1.total_.isNull)) {
var n_ = form1.page1.subform1.total_.rawValue;
if (form1.page1.subform1.color_ .rawValue > 32 && color_.rawValue < 35) {
this.rawValue = "B";
else {
if (n_ > 89) {
this.rawValue = "A";
else {
if (n_ > 69) {
this.rawValue = "B";
else {
if (n_ > 49) {
this.rawValue = "C";
else {
this.rawValue = "";
Also need this for defect_ and character_
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gasUsed;
priceOfLiterGas;
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Here's the update:
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double priceOfALiter;
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import java.awt.*;
import java.awt.event.*;
import java.text.DecimalFormat;
import javax.swing.*;
public class MORT_RETRY extends JFrame implements ActionListener
private JPanel keypad;
private JPanel buttons;
private JTextField lcdLoanAmt;
private JTextField lcdInterestRate;
private JTextField lcdTerm;
private JTextField lcdMonthlyPmt;
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private JButton ClrBtn;
private JButton CloseBtn;
private JButton Amortize;
private JScrollPane scroll;
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lcdMonthlyPmt = new JTextField();
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buttons.add(CalculateBtn);
buttons.add(Amortize);
buttons.add(ClrBtn);
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CalculateBtn.addActionListener(this);
ClrBtn.addActionListener(this);
CloseBtn.addActionListener(this);
Amortize.addActionListener(this);
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pane.add(buttons, BorderLayout.SOUTH);
pane.add(scroll, BorderLayout.CENTER);
addWindowListener( new WindowAdapter()
public void windowClosing(WindowEvent e)
System.exit(0);
public void actionPerformed(ActionEvent e)
String arg = lcdLoanAmt.getText();
int combined = Integer.parseInt(arg);
if (e.getSource() == CalculateBtn)
try
JOptionPane.showMessageDialog(null, "Got try here", "Error", JOptionPane.ERROR_MESSAGE);
catch(NumberFormatException ev)
JOptionPane.showMessageDialog(null, "Got here", "Error", JOptionPane.ERROR_MESSAGE);
if ((e.getSource() == CalculateBtn) && (arg != null))
try{
if ((e.getSource() == CalculateBtn) && (rateTermList.getSelectedIndex() == 1))
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lcdMonthlyPmt.setText(calcPattern.format(monthlyPayment));
if ((e.getSource() == CalculateBtn) && (rateTermList.getSelectedIndex() == 3))
monthlyInterest = interest[2] / (12 * 100);
termInMonths = term[2] * 12;
monthlyPayment = combined * (monthlyInterest / (1 - (Math.pow (1 + monthlyInterest, -termInMonths))));
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catch(NumberFormatException ev)
JOptionPane.showMessageDialog(null, "Invalid Entry!\nPlease Try Again", "Error", JOptionPane.ERROR_MESSAGE);
} //IF STATEMENTS FOR AMORTIZATION
if ((e.getSource() == Amortize) && (rateTermList.getSelectedIndex() == 1))
loopy(7, 5.35);
if ((e.getSource() == Amortize) && (rateTermList.getSelectedIndex() == 2))
loopy(15, 5.5);
if ((e.getSource() == Amortize) && (rateTermList.getSelectedIndex() == 3))
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if (e.getSource() == ClrBtn)
rateTermList.setSelectedIndex(0);
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if (e.getSource() == CloseBtn)
System.exit(0);
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double total, monthly, monthlyrate, monthint, monthprin, balance, lastint, paid;
int amount, months, termloop, monthloop;
String lcd2 = lcdLoanAmt.getText();
amount = Integer.parseInt(lcd2);
termloop = 1;
paid = 0.00;
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displayArea.setCaretPosition(0);
displayArea.append("\n");
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displayArea.append("\n");
displayArea.append("Month\tMonthly\tPrinciple\tInterest\tBalance\n");
monthloop = 1;
while (monthloop <= 12)
monthint = balance * monthlyrate;
monthprin = monthly - monthint;
balance -= monthprin;
paid += monthly;
displayArea.setCaretPosition(0);
displayArea.append(monthloop + "\t" + calcPattern.format(monthly) + "\t" + calcPattern.format(monthprin) + "\t");
displayArea.append(calcPattern.format(monthint) + "\t" + calcPattern.format(balance) + "\n");
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termloop ++;
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MORT_RETRY f = new MORT_RETRY();
f.setTitle("MORTGAGE PAYMENT CALCULATOR");
f.setBounds(600, 600, 500, 500);
f.setLocationRelativeTo(null);
f.setVisible(true);
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Message was edited by:
new2this2020What's the problem you're having ???
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Help, I am killing myself trying to do this and I need help ASAP
I need help with this program it has to act like a cash register. The user will input an items price and then their payment. It will tell you the change and then tell you what kinda of change to use, see example below:
Use JOptionPane to take inputs from the user and display the results.
Example:
If the user enters
Amount Due = 5.52 // First Input from the User
Amount Given = 10.00 // Second Input from the User
Calculate the Balance Due
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$1 bill = 4 (4.00)
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Dimes = 2 (0.20)
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This last part, where you display the change that will be given back, ie: how many quarters, dimes, nickels, pennies is the part I am having problems with.
Can some one help? Please pardon my coding abilities, I am still learning how to do this and would really appreciate any help you can with my program.
Thanks in advance.
import javax.swing.*;
import java.text.*;
public class CashReg
{ //Start
public static void main (String [] args)
{ //Start Main
int count = 0;
char c1 = 0;
String price = null;
String payment = null;
String change = null;
boolean correct = false;
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if (payment.length() < 1) //Loop
JOptionPane.showMessageDialog (null, "You did not enter a payment amount, try again please.");//Error message
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JOptionPane.showMessageDialog (null, "You item costs "+price+" and you payed "+payment+" and your change will be "+change);
System.exit(0);
} //End Main
} //EndOK, thanks for your help, but I need some more. I have the program running and showing the amount of change that is going to be returned. But I don't know how to display the kind of change. AKA, quarters, dimes, nickels and pennies. I am a programming idot, my teacher is letting us twist in the wind. He is not explaining the concepts behind any of this. You are saying the word "logic" and I don't know what that means. This assigment is due Monday, I just need some help with the last part. How to show the change. I am just plain lost. please help.
import java.text.DecimalFormat;
import javax.swing.*;
import java.text.*;
public class CashReg
{ //Start
public static void main (String [] args)
{ //Start Main
int count = 0;
char c1 = 0;
String price = null;
String payment = null;
String change = null;
boolean correct = false;
while(!correct)
{ //Start Loop
price = JOptionPane.showInputDialog (null,"Enter the amount of the item for purchase");
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JOptionPane.showMessageDialog (null, "You did not enter a purchase amount, try again please.");//Error message
payment = JOptionPane.showInputDialog (null,"Enter your payment amount.");
if (payment.length() < 1) //Loop
JOptionPane.showMessageDialog (null, "You did not enter a payment amount, try again please.");//Error message
else
correct = true; //Boolean to confirm that there are enough characters
for (int i=0; i<price.length(); i++)
if (Character.isUpperCase(price.charAt(i)))
count++;
} //End loop
// response = price - payment;
float fPrice = Float.parseFloat(price);
float fPayment = Float.parseFloat(payment);
float fChange = fPayment-fPrice;
DecimalFormat df = new DecimalFormat ("#.00");
JOptionPane.showMessageDialog (null, "You item costs "+price+" and you payed "+payment+" and your change will be "+ df.format (fChange));
This is where I don't know what to put
System.exit(0);
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"Part Type" , "Serial Number", "District", "Status","Truck Type",and "truck number" for a certain Part on all Trucks. I need to be able check and see if the serial number was on
a particular job and calculate the hours of that serial number if it was on that job and the jobdate falls between the install date and removal date. Ive tried but keep getting either
repeating rows, total hrs of the truck instead of the serial number. Ive considered doing a pivot to display it but have been having trouble putting it together.
table 1
(*records of parts*)
Contains serial number,truck number, part type, part number, install date, removal date, status
table 2
(*records of Jobs*)
contains Jobnumber, JobStartdate, Max pressure, average pressure, and Totalhrs
table 3
(records related to jobs and trucks)
contains jobnumber, district , and truck numbers
Table 4
(records of manufacturers and part numbers)
contains partnumber, manufacturer name, and truck type
I would like to get it to show like below
SerialNo PrtType
MFG TruckNo
TrkType TtlHrs
MaxPr AvgPr
Status
Dst
AB345 1200series
NGK 2G34
Boss X 400 10,000
9500 NonOp
NE
Thanks in advanceHope this helps
Note: (Date of Mar 1 2014 was just extended to a further date so the system would know that its still operating when calculating current hours)
Table 1
SerialNo TruckNo InstallDate RemovalDate Status PartNo PartType
BJ1002 F917 2013-09-17 2014-03-01 Oper L871235 BJ 3000 GL
CWS1002 F104 2012-11-21 2013-03-29 NonOper L76088-450 CWS 2000
CWS1003 F104 2013-04-24 2013-08-01 NonOper L76088-450 CWS 2000
CWS1005 F187 2012-11-21 2013-04-04 NonOper L76088-450 CWS 2000
CWS1006 F187 2013-04-24 2013-06-30 NonOper L76088-450 CWS 2000
CWS1007 F187 2013-06-30 2013-03-01 Oper L76088-450 CWS 2000
CWS1009 2F60 2013-05-05 2013-03-01 Oper L76088-450 CWS 2000
CWS1011 F809 2013-05-28 2013-08-28 NonOper L76088-400 CWS 2000
CWS1013 F990 2013-06-11 2013-10-29 NonOper L76088-450 CWS 2000
CWS1015 F783 2013-06-28 2013-03-01 Oper L76088-450 CWS 2000
Table 2
JobNumber Date District PrAvTreat PrMaxTr TotalHrs
553811287 2012-01-19 Fairmount 7337 8319 1.53
652110088 2012-08-20 San Antonio 6340 7075 0.47
652110090 2012-08-21 San Antonio 6134 7131 0.62
652110091 2012-08-22 San Antonio 6180 2950 0.58
652110092 2012-08-23 San Antonio 5959 6789 0.64
652110093 2012-08-23 San Antonio 6165 7466 0.62
Table 3
TruckNo District JobNumber
1F01 Odessa 10011012329
1F01 Odessa 10011012333
1F01 Odessa 10011014831
1F01 Odessa 10011014834
1F01 Odessa 10011012332
1F01 Odessa 10011012328
1F01 Odessa 10011014829
Table 4
PartNumber Manufacturer TruckType
L322020-2 Jimmy Dean Ford T
L322738-2 Lucas Ford T
L47869-1 Jimmy Dean Ford T
L76070-650 NGK Ford T
Sam Howard -
Need help with calculator project for an assignment...
Hi all, I please need help with my calculator project that I have to do for an assignment.
Here is the project's specifications that I need to do"
"""Create a console calculator applicaion that:
* Takes one command line argument: your name and surname. When the
program starts, display the date and time with a welcome message for the
user.
* Display all the available options to the user. Your calculator must include
the arithmetic operations as well as at least five scientific operations of the
Math class.
-Your program must also have the ability to round a number and
truncate it.
-When you multiply by 2, you should not use the '*' operator to perform the
operation.
-Your program must also be able to reverse the sign of a number.
* Include sufficient error checking in your program to ensure that the user
only enters valid input. Make use of the String; Character, and other
wrapper classes to help you.
* Your program must be able to do conversions between decimal, octal and
hex numbers.
* Make use of a menu. You should give the user the option to end the
program when entering a certain option.
* When the program exits, display a message for the user, stating the
current time, and calculate and display how long the user used your
program.
* Make use of helper classes where possible.
* Use the SDK to run your program."""
When the program starts, it asks the user for his/her name and surname. I got the program to ask the user again and again for his/her name and surname
when he/she doesn't insert anything or just press 'enter', but if the user enters a number for the name and surname part, the program continues.
Now my question is this: How can I restrict the user to only enter 'letters' (and spaces of course) but allow NO numbers for his/her surname??
Here is the programs code that I've written so far:
{code}
import java.io.*;
import java.util.*;
import java.text.*;
public class Project {
private static String nameSurname = "";
private static String num1 = null;
private static String num2 = null;
private static String choice1 = null;
private static double answer = 0;
private static String more;
public double Add() {
answer = (Double.parseDouble(num1) + Double.parseDouble(num2));
return answer;
public double Subtract() {
answer = (Double.parseDouble(num1) - Double.parseDouble(num2));
return answer;
public double Multiply() {
answer = (Double.parseDouble(num1) * Double.parseDouble(num2));
return answer;
public double Divide() {
answer = (Double.parseDouble(num1) / Double.parseDouble(num2));
return answer;
public double Modulus() {
answer = (Double.parseDouble(num1) % Double.parseDouble(num2));
return answer;
public double maximumValue() {
answer = (Math.max(Double.parseDouble(num1), Double.parseDouble(num2)));
return answer;
public double minimumValue() {
answer = (Math.min(Double.parseDouble(num1), Double.parseDouble(num2)));
return answer;
public double absoluteNumber1() {
answer = (Math.abs(Double.parseDouble(num1)));
return answer;
public double absoluteNumber2() {
answer = (Math.abs(Double.parseDouble(num2)));
return answer;
public double Squareroot1() {
answer = (Math.sqrt(Double.parseDouble(num1)));
return answer;
public double Squareroot2() {
answer = (Math.sqrt(Double.parseDouble(num2)));
return answer;
public static String octalEquivalent1() {
int iNum1 = Integer.parseInt(num1);
String octal1 = Integer.toOctalString(iNum1);
return octal1;
public static String octalEquivalent2() {
int iNum2 = Integer.parseInt(num2);
String octal2 = Integer.toOctalString(iNum2);
return octal2;
public static String hexadecimalEquivalent1() {
int iNum1 = Integer.parseInt(num1);
String hex1 = Integer.toHexString(iNum1);
return hex1;
public static String hexadecimalEquivalent2() {
int iNum2 = Integer.parseInt(num2);
String hex2 = Integer.toHexString(iNum2);
return hex2;
public double Round1() {
answer = Math.round(Double.parseDouble(num1));
return answer;
public double Round2() {
answer = Math.round(Double.parseDouble(num2));
return answer;
SimpleDateFormat format1 = new SimpleDateFormat("EEEE, dd MMMM yyyy");
Date now = new Date();
SimpleDateFormat format2 = new SimpleDateFormat("hh:mm a");
static Date timeIn = new Date();
public static long programRuntime() {
Date timeInD = timeIn;
long timeOutD = System.currentTimeMillis();
long msec = timeOutD - timeInD.getTime();
float timeHours = msec / 1000;
return (long) timeHours;
DecimalFormat decimals = new DecimalFormat("#0.00");
public String insertNameAndSurname() throws IOException{
boolean inputCorrect = false;
while (inputCorrect == false) {
while (nameSurname == null || nameSurname.length() == 0) {
for (int i = 0; i < nameSurname.length(); i++) {
if ((nameSurname.charAt(i) > 'a') && (nameSurname.charAt(i) < 'Z')){
inputCorrect = true;
else{
inputCorrect = false;
break;
try {
BufferedReader inStream = new BufferedReader (new InputStreamReader(System.in));
System.out.print("Please enter your name and surname: ");
nameSurname = inStream.readLine();
inputCorrect = true;
}catch (IOException ex) {
System.out.println("You did not enter your name and surname, " + nameSurname + " is not a name, please enter your name and surname :");
inputCorrect = false;
System.out.println("\nA warm welcome " + nameSurname + " ,todays date is: " + format1.format(now));
System.out.println("and the time is now exactly " + format2.format(timeIn) + ".");
return nameSurname;
public String inputNumber1() throws IOException {
boolean inputCorrect = false;
while (inputCorrect == false) {
try {
BufferedReader br = new BufferedReader (new InputStreamReader(System.in));
System.out.print("\nPlease enter a number you want to do a calculation with and hit <ENTER>: ");
num1 = br.readLine();
double number1 = Double.parseDouble(num1);
System.out.println("\nThe number you have entered is: " + number1);
inputCorrect = true;
} catch (NumberFormatException nfe) {
System.out.println("\nYou did not enter a valid number: " + "\""+ num1 + "\" is not a number!!");
inputCorrect = false;
return num1;
public String calculatorChoice() throws IOException {
System.out.println("Please select an option of what you would like to do with this number from the menu below and hit <ENTER>: ");
System.out.println("\n*********************************************");
System.out.println("---------------------------------------------");
System.out.println("Please select an option from the list below: ");
System.out.println("---------------------------------------------");
System.out.println("1 - Add");
System.out.println("2 - Subtract");
System.out.println("3 - Multiply");
System.out.println("4 - Divide (remainder included)");
System.out.println("5 - Maximum and minimum value of two numbers");
System.out.println("6 - Squareroot");
System.out.println("7 - Absolute value of numbers");
System.out.println("8 - Octal and Hexadecimal equivalent of numbers");
System.out.println("9 - Round numbers");
System.out.println("0 - Exit program");
System.out.println("**********************************************");
boolean inputCorrect = false;
while (inputCorrect == false) {
try {
BufferedReader inStream = new BufferedReader (new InputStreamReader(System.in));
System.out.print("Please enter your option and hit <ENTER>: ");
choice1 = inStream.readLine();
int c1 = Integer.parseInt(choice1);
System.out.println("\nYou have entered choice number: " + c1);
inputCorrect = true;
} catch (NumberFormatException nfe) {
System.out.println("You did not enter a valid choice number: " + "\""+ choice1 + "\" is not in the list!!");
inputCorrect = false;
return choice1;
public String inputNumber2() throws IOException {
boolean inputCorrect = false;
while (inputCorrect == false) {
try {
BufferedReader br2 = new BufferedReader (new InputStreamReader(System.in));
System.out.print("\nPlease enter another number you want to do the calculation with and hit <ENTER>: ");
num2 = br2.readLine();
double n2 = Double.parseDouble(num2);
System.out.println("\nThe second number you have entered is: " + n2);
System.out.println("\nYour numbers are: " + num1 + " and " + num2);
inputCorrect = true;
} catch (NumberFormatException nfe) {
System.out.println("You did not enter a valid number: " + "\""+ num2 + "\" is not a number!!");
inputCorrect = false;
return num2;
public int Calculator() {
int choice2 = (int) Double.parseDouble(choice1);
switch (choice2) {
case 1 :
Add();
System.out.print("The answer of " + num1 + " + " + num2 + " is: " + decimals.format(answer));
break;
case 2 :
Subtract();
System.out.print("The answer of " + num1 + " - " + num2 + " is: " + decimals.format(answer));
break;
case 3 :
Multiply();
System.out.print("The answer of " + num1 + " * " + num2 + " is: " + decimals.format(answer));
break;
case 4 :
Divide();
System.out.print("The answer of " + num1 + " / " + num2 + " is: " + decimals.format(answer));
Modulus();
System.out.print(" and the remainder is " + decimals.format(answer));
break;
case 5 :
maximumValue();
System.out.println("The maximum number between the numbers " + num1 + " and " + num2 + " is: " + decimals.format(answer));
minimumValue();
System.out.println("The minimum number between the numbers " + num1 + " and " + num2 + " is: " + decimals.format(answer));
break;
case 6 :
Squareroot1();
System.out.println("The squareroot of value " + num1 + " is: " + decimals.format(answer));
Squareroot2();
System.out.println("The squareroot of value " + num2 + " is: " + decimals.format(answer));
break;
case 7 :
absoluteNumber1();
System.out.println("The absolute number of " + num1 + " is: " + decimals.format(answer));
absoluteNumber2();
System.out.println("The absolute number of " + num2 + " is: " + decimals.format(answer));
break;
case 8 :
octalEquivalent1();
System.out.println("The octal equivalent of " + num1 + " is: " + octalEquivalent1());
octalEquivalent2();
System.out.println("The octal equivalent of " + num2 + " is: " + octalEquivalent2());
hexadecimalEquivalent1();
System.out.println("\nThe hexadecimal equivalent of " + num1 + " is: " + hexadecimalEquivalent1());
hexadecimalEquivalent2();
System.out.println("The hexadecimal equivalent of " + num2 + " is: " + hexadecimalEquivalent2());
break;
case 9 :
Round1();
System.out.println("The rounded number of " + num1 + " is: " + decimals.format(answer));
Round2();
System.out.println("The rounded number of " + num2 + " is: " + decimals.format(answer));
break;
case 0 :
if (choice2 == 0) {
System.exit(1);
break;
return choice2;
public String anotherCalculation() throws IOException {
boolean inputCorrect = false;
while (inputCorrect == false) {
try {
BufferedReader br3 = new BufferedReader (new InputStreamReader(System.in));
System.out.print("\nWould you like to do another calculation? Y/N ");
more = br3.readLine();
String s1 = "y";
String s2 = "Y";
if (more.equals(s1) || more.equals(s2)) {
inputCorrect = true;
while (inputCorrect = true){
inputNumber1();
System.out.println("");
calculatorChoice();
System.out.println("");
inputNumber2();
System.out.println("");
Calculator();
System.out.println("");
anotherCalculation();
System.out.println("");
inputCorrect = true;
} else {
System.out.println("\n" + nameSurname + " thank you for using this program, you have used this program for: " + decimals.format(programRuntime()) + " seconds");
System.out.println("the program will now exit, Goodbye.");
System.exit(0);
} catch (IOException ex){
System.out.println("You did not enter a valid answer: " + "\""+ more + "\" is not in the list!!");
inputCorrect = false;
return more;
public static void main(String[] args) throws IOException {
Project p1 = new Project();
p1.insertNameAndSurname();
System.out.println("");
p1.inputNumber1();
System.out.println("");
p1.calculatorChoice();
System.out.println("");
p1.inputNumber2();
System.out.println("");
p1.Calculator();
System.out.println("");
p1.anotherCalculation();
System.out.println("");
{code}
*Can you please run my code for yourself and have a look at how this program is constructed*
*and give me ANY feedback on how I can better this code(program) or if I've done anything wrong from your point of view.*
Your help will be much appreciated.
Thanks in advanceSmirre wrote:
Now my question is this: How can I restrict the user to only enter 'letters' (and spaces of course) but allow NO numbers for his/her surname??You cannot restrict the user. It is a sad fact in programming that the worst bug always sits in front of the Computer.
What you could do is checking the input string for numbers. If it contains numbers, just reprompt for the Name.
AND you might want to ask yourself why the heck a calculator needs to know the users Name. -
ok so i have a midterm and need help this question that is gonna be on the midterm. i dont know how to do it and its worth 16 marks!!!! here it is
the UW Orchestra wants to produce a CD containing all the pieces of music
from its upcoming concert. In order to do that, it needs to calculate the total length of time for the
CD. In addition, the conductor wishes to know which piece of music has the longest duration.
Sample output for the program.
The Swan (3.88)
The Bee (0.98)
Claire de Lune (6.02)
Liebesfreund (3.38)
Ragtime (3.48)
The total time for the CD is 18.74 minutes.
The longest piece is Claire de Lune.
Do not include the HTML that is required to embed the program into a Web page (that is, show
only what you would write between <script> and </script> tags).
[4 marks] In the following space, define a function, Print, that takes two parameters, Title and
Length, and outputs a line of text such that Title appears in italics, followed by Length in
parentheses. The function also returns the value of Length.
For example, Print("My World",30) will output the line
My World (30)
and return the value 30.
Put your JavaScript program for the remainder of this question in the space provided on the next
two pages.
[9 marks]. For each piece of music, your program should input the title of the piece and the
duration (in minutes) for that piece, and it should output a line showing those values using the
Print function just defined. After all pieces have been listed, the program should output the
total length of time for the CD, adding in 0.25 minutes between each piece of music (which is
needed on the CD to separate the pieces).
[3 marks] The program should also output the name of the piece that has the longest playing
time.
Use reasonable variable names, indentation and good programming style. Documentation and
comments are not required, but you may add them to explain any assumptions you might want to
make. You need not check that the input is valid, and you may assume that no two pieces have the
same duration.
can anyone help me out! i would be indebt of ur kindness if u can help me out!This forum is for Java, not JavaScript. The two have nothing to do with each other.
And anyway, this is your studying, so you should try to do it, put forth your best effort, and ask specific questions (on the proper fourm). -
Java using GUI's mixed with opengl... needs help...urgent....
guys, i need help.... is anyone there have an idea about opengl...? ill attach 4 files that needs to be enhanced or debug for possible errors. to see the canvas... you should have atleast all the needed lib and jar of opengl in your pc.
its urgent, its for our thesis actually....ill be dividing the codes with the use of (" **** ")sign...
* Main.java
* Created on 29 January 2007, 08:12
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package longgong;
* @author welcome
public class Main {
/** Creates a new instance of Main */
public Main() {
* @param args the command line arguments
public static void main(String[] args) {
// TODO code application logic here
frmMain f = new frmMain();
* frmMain.java
* Created on November 10, 2006, 10:52 AM
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package longgong; // create a floder named longgong and add the class inside
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
* @author all user
public class frmMain extends JFrame implements ActionListener, ChangeListener, ItemListener{
JPanel pnlWest, pnlEast, pnlCenter, pnlSouth, pnlTitle, pnlSlider, pnlPlayers;
JSlider slrSpeed;
JList lstResults;
String varResults [] = new String[31];
JLabel lblPlayers, lblTitle;
JCheckBox lblPlayer1, lblPlayer2, lblPlayer3, lblPlayer4, lblPlayer5, lblPlayer6;
ImageIcon imgDice1;
MyCanvas canvas;
JButton btnStart, btnStop;
JMenuBar menuBar;
JMenu menuFile, menuView, menuHelp;
JMenuItem menuNew, menuExit, menuIn, menuOut, menuHigh, menuPlay, menuAbout;
boolean isNew = false;
/** Creates a new instance of frmMain */
public frmMain() {
setLayout(new BorderLayout());
setTitle("Longgong");
setSize(780,600);
canvas = new MyCanvas(getSize().width, getSize().height);
imgDice1 = new ImageIcon("c:\\java\\images\\one.png");
menuBar = new JMenuBar();
menuFile = new JMenu("File");
menuView = new JMenu("View");
menuHelp = new JMenu("Help");
menuNew = new JMenuItem ("New Game");
menuNew.addActionListener(this);
menuExit = new JMenuItem ("Exit");
menuExit.addActionListener(this);
menuIn = new JMenuItem ("Zoom In");
menuIn.addActionListener(this);
menuOut = new JMenuItem ("Zoom Out");
menuOut.addActionListener(this);
menuHigh = new JMenuItem ("High Score");
menuPlay = new JMenuItem ("How To Play");
menuPlay.addActionListener(this);
menuAbout = new JMenuItem ("About");
menuAbout.addActionListener(this);
menuFile.add(menuNew);
menuFile.add(menuExit);
menuView.add(menuIn);
menuView.add(menuOut);
menuView.add(menuHigh);
menuHelp.add(menuPlay);
menuHelp.add(menuAbout);
menuBar.add(menuFile);
menuBar.add(menuView);
menuBar.add(menuHelp);
setJMenuBar(menuBar);
varResults[0] = "Dice Results";
varResults[1] = "1. 3-4-2";
varResults[2] = "2. 3-1-4";
varResults[3] = "3. 3-6-5";
slrSpeed = new JSlider(0, 100, 0);
slrSpeed.setPaintTicks(true);
slrSpeed.setMinorTickSpacing(1);
slrSpeed.setPaintLabels(true);
slrSpeed.setSnapToTicks(true);
slrSpeed.addChangeListener(this);
slrSpeed.setEnabled(false);
btnStart = new JButton("Start");
btnStart.addActionListener(this);
btnStop = new JButton("Stop");
btnStop.addActionListener(this);
pnlWest = new JPanel();
pnlEast = new JPanel();
pnlCenter = new JPanel();
pnlSouth = new JPanel();
pnlTitle = new JPanel();
pnlSlider = new JPanel();
pnlPlayers = new JPanel();
pnlWest.setLayout(new BorderLayout());
pnlEast.setLayout(new BorderLayout());
pnlEast.setPreferredSize(new Dimension(100,400));
pnlCenter.setLayout(new BorderLayout());
pnlSouth.setLayout(new FlowLayout());
pnlTitle.setLayout(new FlowLayout());
pnlSlider.setLayout(new FlowLayout());
pnlPlayers.setLayout(new BoxLayout(pnlPlayers,BoxLayout.Y_AXIS));
pnlPlayers.setPreferredSize(new Dimension(150,400));
lblPlayers = new JLabel(" Players: Choice (s)");
lblPlayer1 = new JCheckBox("None");
lblPlayer1.addItemListener(this);
lblPlayer2 = new JCheckBox("None");
lblPlayer2.addItemListener(this);
lblPlayer3 = new JCheckBox("None");
lblPlayer3.addItemListener(this);
lblPlayer4 = new JCheckBox("None");
lblPlayer4.addItemListener(this);
lblPlayer5 = new JCheckBox("None");
lblPlayer5.addItemListener(this);
lblPlayer6 = new JCheckBox("None");
lblPlayer6.addItemListener(this);
lstResults = new JList(varResults);
pnlPlayers.add(lblPlayers);
pnlPlayers.add(lblPlayer1);
pnlPlayers.add(lblPlayer2);
pnlPlayers.add(lblPlayer3);
pnlPlayers.add(lblPlayer4);
pnlPlayers.add(lblPlayer5);
pnlPlayers.add(lblPlayer6);
pnlSlider.add(slrSpeed);
pnlSlider.add(btnStart);
pnlSlider.add(btnStop);
pnlEast.add(BorderLayout.CENTER, lstResults);
pnlCenter.add(BorderLayout.SOUTH, pnlSlider);
pnlCenter.add(BorderLayout.CENTER, canvas);
lblTitle = new JLabel("LONGGONG DICE GAME SIMULATION");
pnlTitle.add(lblTitle);
getContentPane().add(BorderLayout.NORTH,pnlTitle);
getContentPane().add(BorderLayout.WEST,pnlPlayers);
getContentPane().add(BorderLayout.EAST,pnlEast);
getContentPane().add(BorderLayout.CENTER, pnlCenter);
getContentPane().add(BorderLayout.SOUTH,pnlSouth);
setResizable(false);
canvas.start();
show();
//name change when player is selected
public void itemStateChanged(ItemEvent e) {
Object source = e.getItemSelectable();
int choice;
if (source == lblPlayer1) {
if (lblPlayer1.isSelected()) {
frmChoices fchoices = new frmChoices(lblPlayer1);
if (source == lblPlayer2) {
if (lblPlayer2.isSelected()) {
frmChoices fchoices = new frmChoices(lblPlayer2);
if (source == lblPlayer3) {
if (lblPlayer3.isSelected()) {
frmChoices fchoices = new frmChoices(lblPlayer3);
if (source == lblPlayer4) {
if (lblPlayer4.isSelected()) {
frmChoices fchoices = new frmChoices(lblPlayer4);
if (source == lblPlayer5) {
if (lblPlayer5.isSelected()) {
frmChoices fchoices = new frmChoices(lblPlayer5);
if (source == lblPlayer6) {
if (lblPlayer6.isSelected()) {
frmChoices fchoices = new frmChoices(lblPlayer6);
// if (e.getStateChange() == ItemEvent.DESELECTED)
//...make a note of it...
//slider speed change
public void stateChanged(ChangeEvent e){
canvas.speed(slrSpeed.getValue());
public void actionPerformed (ActionEvent e){
if (e.getActionCommand().equals ("Exit")){
System.exit (0);
//connects to frmNew
if (e.getActionCommand().equals ("New Game")){
frmNew n = new frmNew(this);
lblPlayer1.setText("None");
lblPlayer2.setText("None");
lblPlayer3.setText("None");
lblPlayer4.setText("None");
lblPlayer5.setText("None");
lblPlayer6.setText("None");
isNew = true;
lblPlayer1.setSelected(false);
lblPlayer2.setSelected(false);
lblPlayer3.setSelected(false);
lblPlayer4.setSelected(false);
lblPlayer5.setSelected(false);
lblPlayer6.setSelected(false);
if (e.getActionCommand().equals ("Start")){
slrSpeed.setEnabled(true);
canvas.setRandomDicePosition();
if (e.getActionCommand().equals ("Stop")){
slrSpeed.setValue(0);
slrSpeed.setEnabled(false);
//ADDED
if (e.getActionCommand().equals ("New Game")){
frmNew n = new frmNew(this);
if (e.getActionCommand().equals ("Zoom In")){
canvas.zoomIn();
if (e.getActionCommand().equals ("Zoom Out")){
canvas.zoomOut();
if (e.getActionCommand().equals ("How To Play")){
frmPlay p = new frmPlay();
if (e.getActionCommand().equals ("About")){
frmAbout a = new frmAbout();
package longgong;
// Java classes
import java.awt.*;
import java.awt.event.*;
import java.net.URL;
// GL4Java classes
import gl4java.GLContext;
import gl4java.awt.GLAnimCanvas;
import gl4java.utils.textures.*;
class MyCanvas extends GLAnimCanvas implements KeyListener, MouseListener
// holds information on which keys are held down.
boolean[] keys=new boolean[256];
float xrot; // X Rotation ( NEW )
float yrot; // Y Rotation ( NEW )
float zrot; // Z Rotation ( NEW )
float[] diceRotX = new float[3];
float[] diceRotY = new float[3];
float[] diceRotZ = new float[3];
float[] diceTranX = new float[3];
float[] diceTranY = new float[3];
float[] diceTranZ = new float[3];
float speedValue;
Dice[] D;
float zoom = -15.0f;
public MyCanvas(int w, int h)
super(w, h);
//Registers this canvas to process keyboard events, and Mouse events
addKeyListener(this);
addMouseListener(this);
setAnimateFps(60); // seemed to be essential in getting any performance
speedValue=0.0f;
diceTranX[0] = -2.0f;
diceTranY[0] = 2.0f;
diceTranZ[0] = zoom;
diceTranX[1] = 2.0f;
diceTranY[1] = 1.0f;
diceTranZ[1] = zoom;
diceTranX[2] = 0.0f;
diceTranY[2] = -2.0f;
diceTranZ[2] = zoom;
public void zoomIn(){
zoom=zoom+1.0f;
public void zoomOut(){
zoom=zoom-1.0f;
public void speed(float s){
speedValue=s/100;
/** void reshape(int width, int height) Called after the first paint command. */
public void reshape(int width, int height)
if(height==0)height=1;
gl.glViewport(0, 0, width, height); // Reset The Current Viewport And Perspective Transformation
gl.glMatrixMode(GL_PROJECTION); // Select The Projection Matrix
gl.glLoadIdentity(); // Reset The Projection Matrix
glu.gluPerspective(45.0f, width / height, 0.1f, 100.0f); // Calculate The Aspect Ratio Of The Window
gl.glMatrixMode(GL_MODELVIEW); // Select The Modelview Matrix
gl.glLoadIdentity(); // Reset The ModalView Matrix
/** void preInit() Called just BEFORE the GL-Context is created. */
public void preInit()
{ doubleBuffer = true; stereoView = false; // buffering but not stereoview
public void setRandomDicePosition(){
for (int i=0; i<3; i++){
D.setCoordinates(diceRotX[i],diceRotY[i],diceRotZ[i],diceTranX[i],diceTranY[i],diceTranZ[i]);
D[i].getRandomDice();
/** void init() Called just AFTER the GL-Context is created. */
public void init()
//float width = (float)getSize().width;
//float height = (float)getSize().height;
D = new Dice[5];
D[0] = new Dice(this);
D[1] = new Dice(this);
D[2] = new Dice(this);
//initialize dice location
for (int i=0; i<3; i++){
D[i].setCoordinates(diceRotX[i],diceRotY[i],diceRotZ[i],diceTranX[i],diceTranY[i],diceTranZ[i]);
D[i].getRandomDice();
gl.glEnable(GL_TEXTURE_2D); //Enable Texture Mapping ( NEW )
gl.glShadeModel(GL_SMOOTH); //Enables Smooth Color Shading
gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f); //This Will Clear The Background Color To Black
gl.glClearDepth(1.0); //Enables Clearing Of The Depth Buffer
gl.glEnable(GL_DEPTH_TEST); //Enables Depth Testing
gl.glDepthFunc(GL_LEQUAL); //The Type Of Depth Test To Do
gl.glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); //Really Nice Perspective Calculations
public void DrawBoundaries(){
double x,y;
double radius = 5.0f;
gl.glLoadIdentity(); // Reset The View
gl.glTranslatef(0.0f,0.0f,zoom-1.0f);
gl.glRotatef(90.0f,0.0f,0.0f,1.0f);
gl.glColor3f(0.6f,0.3f,0.3f);
gl.glBegin(gl.GL_POLYGON);
// angle is
// x = radius * (cosine of angle)
// y = radius * (sine of angle)
for (double a=0; a<360; a++) {
x = radius * (Math.cos(a));
y = radius * (Math.sin(a));
gl.glVertex3d(x, y, 0.0f);
gl.glEnd();
gl.glColor3f(1.0f,1.0f,1.0f);
public void DrawGLScene()
gl.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear The Screen And The Depth Buffer
DrawBoundaries();
for (int i=0; i<3; i++){
D[i].startDiceMovement();
D[i].setTz(zoom);
D[i].setSpeed(speedValue);
D[i].drawDice();
for (int i=0; i<3; i++){
//start of loop
if(i!=0){
if (D[0].getMoveLeft()==true){
if ( (D[0].getTx()>=D[i].getTx()-1.0f) && (D[0].getTx()<=D[i].getTx()) ){
if (D[0].getMoveLeft()== true) D[0].setMoveLeft(false);
else D[0].setMoveLeft(true);
}else{
if ( (D[0].getTx()-1<=D[i].getTx()) && (D[0].getTx()-1>=D[i].getTx()-1) ){
if (D[0].getMoveLeft()== true) D[0].setMoveLeft(false);
else D[0].setMoveLeft(true);
if (D[0].getMoveUp()==true){
if ( (D[0].getTy()>=D[i].getTy()-1.0f) && (D[0].getTy()<=D[i].getTy()) ){
if (D[0].getMoveUp()== true) D[0].setMoveUp(false);
else D[0].setMoveUp(true);
}else{
if ( (D[0].getTy()-1<=D[i].getTy()) && (D[0].getTy()-1>=D[i].getTy()-1) ){
if (D[0].getMoveUp()== true) D[0].setMoveUp(false);
else D[0].setMoveUp(true);
}//end of if i!=0
if(i!=1){
if (D[1].getMoveLeft()==true){
if ( (D[1].getTx()>=D[i].getTx()-1.0f) && (D[1].getTx()<=D[i].getTx()) ){
if (D[1].getMoveLeft()== true) D[1].setMoveLeft(false);
else D[1].setMoveLeft(true);
}else{
if ( (D[1].getTx()-1<=D[i].getTx()) && (D[1].getTx()-1>=D[i].getTx()-1) ){
if (D[1].getMoveLeft()== true) D[1].setMoveLeft(false);
else D[1].setMoveLeft(true);
if (D[1].getMoveUp()==true){
if ( (D[1].getTy()>=D[i].getTy()-1.0f) && (D[1].getTy()<=D[i].getTy()) ){
if (D[1].getMoveUp()== true) D[1].setMoveUp(false);
else D[1].setMoveUp(true);
}else{
if ( (D[1].getTy()-1<=D[i].getTy()) && (D[1].getTy()-1>=D[i].getTy()-1) ){
if (D[1].getMoveUp()== true) D[1].setMoveUp(false);
else D[1].setMoveUp(true);
}//end of if i!=1
if(i!=2){
if (D[2].getMoveLeft()==true){
if ( (D[2].getTx()>=D[i].getTx()-1.0f) && (D[2].getTx()<=D[i].getTx()) ){
if (D[2].getMoveLeft()== true) D[2].setMoveLeft(false);
else D[2].setMoveLeft(true);
}else{
if ( (D[2].getTx()-1<=D[i].getTx()) && (D[2].getTx()-1>=D[i].getTx()-1) ){
if (D[2].getMoveLeft()== true) D[2].setMoveLeft(false);
else D[2].setMoveLeft(true);
if (D[2].getMoveUp()==true){
if ( (D[2].getTy()>=D[i].getTy()-1.0f) && (D[2].getTy()<=D[i].getTy()) ){
if (D[2].getMoveUp()== true) D[2].setMoveUp(false);
else D[2].setMoveUp(true);
}else{
if ( (D[2].getTy()-1<=D[i].getTy()) && (D[2].getTy()-1>=D[i].getTy()-1) ){
if (D[2].getMoveUp()== true) D[2].setMoveUp(false);
else D[2].setMoveUp(true);
}//end of if i!=2
//end of loop for i
/** void display() Draw to the canvas. */
// Purely a Java thing. Simple calls DrawGLScene once GL is Initialized
public void display()
for(int i=0;i<3;i++){
glj.gljMakeCurrent(); //Ensure GL is initialised correctly
DrawGLScene();
glj.gljSwap(); //Swap buffers
glj.gljFree(); // release GL
// Key Listener events
public void keyTyped(KeyEvent e){
public void keyPressed(KeyEvent e){
switch(e.getKeyCode())
//Kill app
case KeyEvent.VK_ESCAPE:
System.exit(0);
break;
default :
if(e.getKeyCode()<250) // only interested in first 250 key codes, are there more?
keys[e.getKeyCode()]=true;
break;
public void keyReleased(KeyEvent e){
if(e.getKeyCode()<250) // only interested in first 250 key codes, are there more?
keys[e.getKeyCode()]=false;
// mouse listener events
public void mouseEntered( MouseEvent evt )
Component comp = evt.getComponent();
if( comp.equals(this ) )
//requestFocus();
public void mouseExited( MouseEvent evt ){
public void mousePressed( MouseEvent evt ){
public void mouseReleased( MouseEvent evt ){
public void mouseClicked( MouseEvent evt )
Component comp = evt.getComponent();
if( comp.equals(this ) )
requestFocus();
* Dice.java
* Created on 08 February 2007, 22:26
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package longgong;
import java.net.URL;
import gl4java.GLContext;
import gl4java.awt.GLAnimCanvas;
import gl4java.utils.textures.*;
* @author welcome
public class Dice {
GLAnimCanvas glCanvas ;
URL codeBase;
int[]texture1 = new int[1]; //Storage for one texture ( NEW )
int[]texture2 = new int[1]; //Storage for one texture ( NEW )
int[]texture3 = new int[1]; //Storage for one texture ( NEW )
int[]texture4 = new int[1]; //Storage for one texture ( NEW )
int[]texture5 = new int[1]; //Storage for one texture ( NEW )
int[]texture6 = new int[1]; //Storage for one texture ( NEW )
float rx;
float ry;
float rz;
float tx;
float ty;
float tz;
float speed;
boolean txMoveLeft;
boolean tyMoveUp;
boolean tzMoveFront;
/** Creates a new instance of Dice */
public Dice(GLAnimCanvas g) {
glCanvas = g;
if(!LoadGLTexture("c:\\java\\images\\one.png",texture1)){
System.out.println("Failed to load Textures,Bailing!");
System.exit(0);
if(!LoadGLTexture("c:\\java\\images\\two.png",texture2)){
System.out.println("Failed to load Textures,Bailing!");
System.exit(0);
if(!LoadGLTexture("c:\\java\\images\\three.png",texture3)){
System.out.println("Failed to load Textures,Bailing!");
System.exit(0);
if(!LoadGLTexture("c:\\java\\images\\four.png",texture4)){
System.out.println("Failed to load Textures,Bailing!");
System.exit(0);
if(!LoadGLTexture("c:\\java\\images\\five.png",texture5)){
System.out.println("Failed to load Textures,Bailing!");
System.exit(0);
if(!LoadGLTexture("c:\\java\\images\\six.png",texture6)){
System.out.println("Failed to load Textures,Bailing!");
System.exit(0);
txMoveLeft = true;
tyMoveUp = true;
public boolean inCircleBoundaries(float x, float y, float radius)
float r;
r = (float)Math.sqrt((x*x) + (y*y));
if (r <= radius)
return true;
else
return false;
public void setCoordinates(float corRx,float corRy,float corRz,float corTx,float corTy,float corTz){
rx = corRx;
ry = corRy;
rz = corRz;
tx = corTx;
ty = corTy;
tz = corTz;
public void getRandomDice(){
int num = (int)(Math.random() * 6);
if (num==1){
rx=0.0f;
ry=0.0f;
rz=0.0f;
else if (num==2){
rx=90.0f;
ry=0.0f;
rz=0.0f;
else if (num==3){
rx=0.0f;
ry=-90.0f;
rz=0.0f;
else if (num==4){
rx=0.0f;
ry=90.0f;
rz=0.0f;
else if (num==5){
rx=-90.0f;
ry=0.0f;
rz=0.0f;
else{
rx=180.0f;
ry=0.0f;
rz=0.0f;
public float getTx(){
return tx+0.5f;
public float getTy(){
return ty+0.5f;
public float getTz(){
return tz+0.5f;
public void setTz(float z){
tz=z;
public boolean getMoveLeft(){
return txMoveLeft;
public boolean getMoveUp(){
return tyMoveUp;
public void setMoveLeft(boolean m){
txMoveLeft = m;
public void setMoveUp(boolean m){
tyMoveUp = m;
public void startDiceMovement(){
if (txMoveLeft==true) {
tx+=speed;
else {
tx-=speed;
if (tyMoveUp==true) {
ty+=speed;
else {
ty-=speed;
ry+=(speed*4);
rx+=(speed*4);
//rz+=(speed*2);
//tx+=speed;
//ty+=speed;
//tz+=speed;
if (inCircleBoundaries(tx,ty,3.5f)==false) {
if (tx>=3.0f) txMoveLeft = false;
if (tx<=-3.0f) txMoveLeft = true;
if (ty>=3.0f) tyMoveUp = false;
if (ty<=-3.0f) tyMoveUp = true;
public void setSpeed(float s){
speed = s;
public void drawDice(){
glCanvas.gl.glLoadIdentity(); // Reset The View
glCanvas.gl.glTranslatef(tx,ty,tz);
glCanvas.gl.glRotatef(rx,1.0f,0.0f,0.0f);
glCanvas.gl.glRotatef(ry,0.0f,1.0f,0.0f);
glCanvas.gl.glRotatef(rz,0.0f,0.0f,1.0f);
glCanvas.gl.glBindTexture(glCanvas.gl.GL_TEXTURE_2D, texture1[0]);
glCanvas.gl.glBegin(glCanvas.gl.GL_QUADS);
// Front Face
glCanvas.gl.glTexCoord2f(0.0f, 0.0f); glCanvas.gl.glVertex3f(-1.0f, -1.0f, 1.0f);
glCanvas.gl.glTexCoord2f(1.0f, 0.0f); glCanvas.gl.glVertex3f( 1.0f, -1.0f, 1.0f);
glCanvas.gl.glTexCoord2f(1.0f, 1.0f); glCanvas.gl.glVertex3f( 1.0f, 1.0f, 1.0f);
glCanvas.gl.glTexCoord2f(0.0f, 1.0f); glCanvas.gl.glVertex3f(-1.0f, 1.0f, 1.0f);
glCanvas.gl.glEnd();
glCanvas.gl.glBindTexture(glCanvas.gl.GL_TEXTURE_2D, texture6[0]);
glCanvas.gl.glBegin(glCanvas.gl.GL_QUADS);
// Back Face
glCanvas.gl.glTexCoord2f(1.0f, 0.0f); glCanvas.gl.glVertex3f(-1.0f, -1.0f, -1.0f);
glCanvas.gl.glTexCoord2f(1.0f, 1.0f); glCanvas.gl.glVertex3f(-1.0f, 1.0f, -1.0f);
glCanvas.gl.glTexCoord2f(0.0f, 1.0f); glCanvas.gl.glVertex3f( 1.0f, 1.0f, -1.0f);
glCanvas.gl.glTexCoord2f(0.0f, 0.0f); glCanvas.gl.glVertex3f( 1.0f, -1.0f, -1.0f);
glCanvas.gl.glEnd();
glCanvas.gl.glBindTexture(glCanvas.gl.GL_TEXTURE_2D, texture2[0]);
glCanvas.gl.glBegin(glCanvas.gl.GL_QUADS);
// Top Face
glCanvas.gl.glTexCoord2f(0.0f, 1.0f); glCanvas.gl.glVertex3f(-1.0f, 1.0f, -1.0f);
glCanvas.gl.glTexCoord2f(0.0f, 0.0f); glCanvas.gl.glVertex3f(-1.0f, 1.0f, 1.0f);
glCanvas.gl.glTexCoord2f(1.0f, 0.0f); glCanvas.gl.glVertex3f( 1.0f, 1.0f, 1.0f);
glCanvas.gl.glTexCoord2f(1.0f, 1.0f); glCanvas.gl.glVertex3f( 1.0f, 1.0f, -1.0f);
glCanvas.gl.glEnd();
glCanvas.gl.glBindTexture(glCanvas.gl.GL_TEXTURE_2D, texture5[0]);
glCanvas.gl.glBegin(glCanvas.gl.GL_QUADS);
// Bottom Face
glCanvas.gl.glTexCoord2f(1.0f, 1.0f); glCanvas.gl.glVertex3f(-1.0f, -1.0f, -1.0f);
glCanvas.gl.glTexCoord2f(0.0f, 1.0f); glCanvas.gl.glVertex3f( 1.0f, -1.0f, -1.0f);
glCanvas.gl.glTexCoord2f(0.0f, 0.0f); glCanvas.gl.glVertex3f( 1.0f, -1.0f, 1.0f);
glCanvas.gl.glTexCoord2f(1.0f, 0.0f); glCanvas.gl.glVertex3f(-1.0f, -1.0f, 1.0f);
glCanvas.gl.glEnd();
glCanvas.gl.glBindTexture(glCanvas.gl.GL_TEXTURE_2D, texture3[0]);
glCanvas.gl.glBegin(glCanvas.gl.GL_QUADS);
// Right face
glCanvas.gl.glTexCoord2f(1.0f, 0.0f); glCanvas.gl.glVertex3f( 1.0f, -1.0f, -1.0f);
glCanvas.gl.glTexCoord2f(1.0f, 1.0f); glCanvas.gl.glVertex3f( 1.0f, 1.0f, -1.0f);
glCanvas.gl.glTexCoord2f(0.0f, 1.0f); glCanvas.gl.glVertex3f( 1.0f, 1.0f, 1.0f);
glCanvas.gl.glTexCoord2f(0.0f, 0.0f); glCanvas.gl.glVertex3f( 1.0f, -1.0f, 1.0f);
glCanvas.gl.glEnd();
glCanvas.gl.glBindTexture(glCanvas.gl.GL_TEXTURE_2D, texture4[0]);
glCanvas.gl.glBegin(glCanvas.gl.GL_QUADS);
// Left Face
glCanvas.gl.glTexCoord2f(0.0f, 0.0f); glCanvas.gl.glVertex3f(-1.0f, -1.0f, -1.0f);
glCanvas.gl.glTexCoord2f(1.0f, 0.0f); glCanvas.gl.glVertex3f(-1.0f, -1.0f, 1.0f);
glCanvas.gl.glTexCoord2f(1.0f, 1.0f); glCanvas.gl.glVertex3f(-1.0f, 1.0f, 1.0f);
glCanvas.gl.glTexCoord2f(0.0f, 1.0f); glCanvas.gl.glVertex3f(-1.0f, 1.0f, -1.0f);
glCanvas.gl.glEnd();
public boolean LoadGLTexture(String fileName, int textureNumber[])
PngTextureLoader texLoader = new PngTextureLoader(glCanvas.gl, glCanvas.glu);
if(codeBase!=null)
texLoader.readTexture(codeBase, fileName);
else
texLoader.readTexture(fileName);
if(texLoader.isOk())
//Create Texture
glCanvas.gl.glGenTextures(1, textureNumber);
glCanvas.gl.glBindTexture(glCanvas.gl.GL_TEXTURE_2D, textureNumber[0]);
glCanvas.gl.glTexParameteri(glCanvas.gl.ill attach 4 files that needs to be
enhanced or debug for possible errors. i hate to break it to you, but even if you post this for the seventh time, finding and fixing errors in your code remains your task. -
Need Help in trying to understand class objects
I need help on understanding following problem.I have two files for that, which are as follows:
first file
public class Matrix extends Object {
private int matrixData[][]; // integer array to store integer data
private int rowMatrix; // number of rows
private int colMatrix; // number of columns
public Matrix( int m, int n )
{ /*Constructor: initializes rowMatrix and colMatrix,
and creates a double subscripted integer array matrix
of rowMatrix rows and colMatrixm columns. */
rowMatrix = m;
colMatrix = n;
matrixData = new int[rowMatrix][colMatrix];
public Matrix( int data[][] )
{ /* Constructor: creates a double subscripted integer array
and initilizes the array using values of data[][] array. */
rowMatrix = data.length;
colMatrix = data[0].length;
matrixData = new int [rowMatrix][colMatrix];
for(int i=0; i<rowMatrix; i++)
for(int j=0; j<colMatrix; j++)
matrixData[i][j] = data[i][j];
public int getElement( int i, int j)
{ /* returns the element at the ith row and jth column of
this matrix. */
return matrixData[i][j];
public boolean setElement( int x, int i, int j)
{ /* sets to x the element at the ith row and jth column
of this matrix; this method should also check the
consistency of i and j (i.e., if i and j are in the range
required for subscripts; only in this situation the operation
can succeed); the method should return true if the operation
succeeds, and should return false otherwise.
for(i=0;i<rowMatrix;i++){
for(j=0;j<colMatrix;j++){
x = matrixData[i][j];
if(i<rowMatrix && j<colMatrix){
return true;
else{
return false;
public Matrix transposeMatrix( )
{ /*returns a reference to an object of the class Matrix,
that contains the transpose of this matrix. */
Verify tata;
Matrix trans;
//Matrix var = matrixData[rowMatrix][colMatrix];
for(int row=0;row<rowMatrix;row++){
for(int col=0;col<colMatrix;col++){
matrixData[rowMatrix][colMatrix] = matrixData[colMatrix][rowMatrix];
trans = new Matrix(matrixData);
return trans;
public Matrix multipleMatrix( Matrix m )
/*returns a reference to an object of the class Matrix,
that contains the product of this matrix and matrix m. */
m = new Matrix(matrixData);
//Matrix var = matrixData[rowMatrix][colMatrix];
for(int row=0;row<rowMatrix;row++){
for(int col=0;col<colMatrix;col++){
//trans[row][col] = getElement(row,col);
return m;
public int diffMatrix( Matrix m )
/*returns the sum of the squared element-wise differences
of this matrix and m ( reference to the formula in the description
of assignment 5) */
return 0;
public String toString( )
/* overloads the toString in Object */
String output = " row = " + rowMatrix + " col="+colMatrix + "\n";
for( int i=0; i<rowMatrix; i++)
for( int j=0; j<colMatrix; j++)
output += " " + getElement(i,j) + " ";
output += "\n";
return output;
Second file
public class Verify extends Object {
public static void main( String args[] )
int[][] dataA = {{1,1,1},{2,0,1},{1,2,0},{4,0,0}}; // data of A
int[][] dataB = {{1,2,2,0},{1,0,3,0},{1,0,3,4}}; // data of B
Matrix matrixA = new Matrix(dataA); // matrix A
System.out.println("Matrix A:"+matrixA);
Matrix matrixB = new Matrix(dataB); // matrix B
System.out.println("Matrix B:"+matrixB);
// Calculate the left-hand matrix
Matrix leftFormula = (matrixA.multipleMatrix(matrixB)).transposeMatrix();
System.out.println("Left Side:"+leftFormula);
// Calculate the right-hand matrix
Matrix rightFormula = (matrixB.transposeMatrix()).multipleMatrix(matrixA.transposeMatrix());
System.out.println("Right Side:"+rightFormula);
// Calculate the difference between left-hand matrix and right-hand matrix
// according to the formula in assignment description
double diff = leftFormula.diffMatrix(rightFormula);
if( diff < 1E-6 ) // 1E-6 is a threshold
System.out.println("Formula is TRUE");
else
System.out.println("Formula is FALSE");
}My basic aim is to verify the formula
(A . B)' =B' . A' or {(A*B)tranpose = Btranspose * A transpose}Now My problem is that I have to run the verify class file and verify class file will call the matrix class and its methods when to do certain calculations (for example to find left formula it calls tranposematrix() and multipleMatrix();)
How will I be able to get the matrix which is to be transposed in transposeMatrix method (in Matrix class)becoz in the method call there is no input for transposematrix() and only one input for multipleMatrix(matrix m).
please peeople help me put in this.
thanking in advancePlease don't crosspost.
http://forum.java.sun.com/thread.jspa?threadID=691969
The other one is the crosspost.Okay, whatever. I'm not really concerned with which one is the original. I just view the set of threads overall as being a crosspost, and arbitrarily pick one to point others toward.
But either way
knightofdurham... pick one thread and post only in
the one.Indeed. And indicate such in the other one.
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How to synch values of fields (cbo & text) in Master Pages section in dynamically created pages?
HI folks, I have a requirement for a form that has a common master page with a checkbox and text field in it. The document is basically a table that dynamically adds rows as the user adds entries. When the first page is full, a second page is dyn
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I hadn't updated or backed up my BlackBerry torch 9800 or my 16GB playbook. Started by taking updates on my phone, all went well. Then I backed up my playbook. When I went to BBM I got the message yourversion of blackberry messenger is not compatibl
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Hello, I get the error "invalid column name" when trying to call a function from a SQL statement. The function resides on a seperate server than the SQL statement, but both servers are connected by a DB Link, and the proper synonyms and pragmas are u