If statements with a String ????
hi, im using a JSP page which takes in a username and password and that info is then sent to a servlet which connects to the database and checks to see which type of user they are. the servlet then redirects them to the page that corresponds to the typ of user they are. everything works fine except for it keeps going to the LoginError page. heres my code for the if statement:
if (acType=="TournamentOwner")
response.sendRedirect("http://localhost:8080/TournamentOwnerPage.jsp");
else if (acType=="TeamManager")
response.sendRedirect("http://localhost:8080/TeamManagerPage.jsp");
else if (acType=="Operator")
response.sendRedirect("http://localhost:8080/OperatorPage.jsp");
else
response.sendRedirect("http://localhost:8080/LoginError.jsp");
ive also tried
if (acType == ' TournamentOwner ' )
if (acType.equals( "TournamentOwner" ))
if(acType.length( ) == 15)
ive also tried it with comparing it to a variable with the same name...
String tour = "TournamentOwner";
if (acType == tour )
the whole thing works fine except it keeps going to the LoginError jsp page.
the acType variable successfully stores the value of the account type so thats working fine.
the problem must be in the if statement. can anyone help me out?
[snip]
the whole thing works fine except it keeps going to
the LoginError jsp page. That seems to be a significant issue!
the acType variable successfully stores the value of
the account type so thats working fine.
the problem must be in the if statement. can anyone
help me out?Aye - use the equals() method to compare String values.
Good Luck
Lee
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pardon my shallow knowledge of java..
ok..
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//prototype of Search engine...
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import java.io.*;
import java.io.OutputStream;
import java.io.IOException;
import javax.servlet.http.*;
import javax.servlet.ServletException;
import java.util.*;
import java.sql.*;
import java.nio.charset.Charset;
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private String query = "";
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query = req.getParameter ("T1");
//query = "������";
System.out.println("after:"+query);
getResults(type,query);
System.out.println("locale = :"+req.getLocale());
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out.println("<html>");
out.println("<head>");
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out.println("<center>");
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int i = 0;
//Display the details of the music
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Results details = (Results)musicDetails.get(i);
String dbArtist = "";
String dbAlbum = "";
String dbTitle = "";
String dbCompany = "";
dbAlbum = details.getAlbum();
dbTitle = details.getTitle();
dbCompany = details.getCompany();
dbArtist = details.getArtist();
try{
dbAlbum = new String(dbAlbum.getBytes("ISO-8859-1"),"GBK");
dbTitle = new String(dbTitle.getBytes("ISO-8859-1"),"GBK");
dbCompany = new String(dbCompany.getBytes("ISO-8859-1"),"GBK");
dbArtist = new String(dbArtist.getBytes("ISO-8859-1"),"GBK");//correct translation.
catch(UnsupportedEncodingException e){
System.out.print(e);
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out.println("<th><font color=\"violet\"> Artist: </font></th>");
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out.println("</tr>");
out.println("<tr>");
out.println("<th><font color=\"violet\"> Title: </font></th>");
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out.println("<tr>");
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out.println("</center>");
out.println("</font>");
out.println("</body>");
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public void getResults (String type, String searchQuery) {
try {
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String artist = rs.getString("Artist");
String title = rs.getString("Song");
String company = rs.getString("Company");
String album = rs.getString("Album");
String image_loc = rs.getString("Image");
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e.printStackTrace();
with the above servlet i created, i can search out the data in the database which i've inserted through the insert statement. I still can't search for things i've keyed into the database directly using NJStar..
thank you so much for helping.. really hope any one else who knows the answer to this will reply too... thank you all so much...
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Help with comparing string array with parameters
I've posted my code in full so hopefully everyone can see exactly what I have been doing.
Note - my code uses the observer/observable model. The method I am having the problem with the if statement is in the class HSBC.
Basically when the pin count reaches 4 (in the atm class) it sends the userid & pincode) over to the checkPinAndUserId(String pinCode, String userCode) method. Here the if statement should check the userid to see if the string parameter matches a string in the array. If it does it should check in the same position in the pin array to check the pin no is correct and then return true.
* @(#)BankAssignment.java 1.0 03/04/06
* This apllication l
package myprojects.bankassignment;
import java.awt.*; // import the component library
import java.awt.event.*; // import the evnet library
import javax.swing.*;
import java.util.*;
class Correct1v16 extends Frame // make a new application
public Correct1v16() // this is the constructor method
HSBC HSBCobj = new HSBC();
public static void main(String args[]) // this invokes the constructor of the class and creates a runable object 'mainframe'
Correct1v16 mainFrame = new Correct1v16(); // the constructor call of the class which creates an object of that class
class HSBC implements Observer, ActionListener
Frame f5;
JLabel refill, launch;
TextField tRefill, tLaunch;
JButton refillbut, launchbut;
int count;
String [] userId=new String [10];
String [] pin=new String [10];
public boolean authenticate = false;
int i;
public HSBC()
drawFrame();
Atm Atmobj = new Atm(this);
System.out.println("Starting HSBC constructor");
public void drawFrame()
System.out.println("Start HSBC drawframe method...");
f5=new Frame("HSBC");
f5.setLayout(new FlowLayout());
f5.setSize(200, 200);
f5.addWindowListener(new WindowAdapter()
public void windowClosing(WindowEvent e)
f5.dispose();
System.exit(0);
refill=new JLabel("Refill ATM");
launch=new JLabel("Launch new ATM");
tRefill=new TextField(20);
tLaunch=new TextField(10);
refillbut=new JButton("Refill ATM");
refillbut.addActionListener(this);
launchbut=new JButton("Launch new ATM");
launchbut.addActionListener(this);
f5.add(refill);
f5.add(tRefill);
f5.add(refillbut);
f5.add(launch);
f5.add(tLaunch);
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pin[0]="1234";
pin[1]="2345";
pin[2]="3456";
pin[3]="4567";
pin[4]="5678";
pin[5]="6789";
pin[6]="7890";
pin[7]="8901";
pin[8]="9012";
pin[9]="0123";
userId[0]="0";
userId[1]="1";
userId[2]="2";
userId[3]="3";
userId[4]="4";
userId[5]="5";
userId[6]="6";
userId[7]="7";
userId[8]="8";
userId[9]="9";
}// end drawframe method
// public Atm atmLink = (Atm)o;
public void update(Observable gm1, Object o)
Atm atmLink = (Atm)o;
tRefill.setText("Refill ATM ?");
atmLink.refill();
}//end update method
public void actionPerformed(ActionEvent ae)
if(ae.getSource() == refillbut)
// Atm Atmobj.refill();
// tRefill.setText("text area");
// atmLink.refill();
// Atmobj.refill();
// setChanged();
// notifyObservers();
if(ae.getSource() == launchbut)
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//******** IT ONLY THE ARRAY CALLED USERID (WHICH HOLDS THE USER CODE MATCHES ONE OF THE USERID'S)
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//******** IF THEY ARE BOTH TRUE I WANT IT TO RETURN TRUE - ELSE FALSE. */
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boolean found = false;
System.out.println("in checkpin method");
System.out.println("userCode = "+ userCode);
System.out.println("pinCode = " + pinCode);
for (int i = 0; i < userId.length; i++)
System.out.println("in the userid array" + userId);
if (userCode.equals(userId[i]))
System.out.println("checking user code array");
if (pinCode.equals(pin[i]))
System.out.println("checking the pin array" + pinCode);
System.out.println("pin[i] = "+pin[i]);
found = true;
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Frame f1;
TextField t3, t5;
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cancel,fivepounds,tenpounds,twentypounds,fiftypounds,clearbut, refillbut;
int state = 1;
public String pinCode ="";
public String userCode ="";
int userCodeCount = 0;
int PINCount = 0;
String withdrawAmount = "";
int atmBalance =200;
private HSBC HSBCobj;
//ATM constructor that receives the HSBCobj g1 reference to where the HSBC class
// in in the program
// Calls the drawATMFrame method
// add the observer to the HSBCobj reference so that the ATM can tell HSBC that
// something has changed
public Atm(HSBC g1)
HSBCobj = g1;
drawATMFrame();
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addObserver(HSBCobj);
// this is the method that draws the ATM interface
// also apply the Border Layout to the frame
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f1=new Frame("ATM");
f1.setLayout(new BorderLayout());
f1.setSize(350, 250);
f1.addWindowListener(new WindowAdapter()
public void windowClosing(WindowEvent e)
f1.dispose();
System.exit(0);
// declare & instantiate all the buttons that will be used on the ATM
but1 =new JButton("1");
but1.addActionListener(this);
but2 =new JButton("2");
but2.addActionListener(this);
but3 =new JButton("3");
but3.addActionListener(this);
but4 =new JButton("4");
but4.addActionListener(this);
but5 =new JButton("5");
but5.addActionListener(this);
but6 =new JButton("6");
but6.addActionListener(this);
but7 =new JButton("7");
but7.addActionListener(this);
but8 =new JButton("8");
but8.addActionListener(this);
but9 =new JButton("9");
but9.addActionListener(this);
but0 =new JButton("0");
but0.addActionListener(this);
enter=new JButton("Enter");
enter.addActionListener(this);
cancel=new JButton("Cancel/ \n Restart");
cancel.addActionListener(this);
fivepounds =new JButton("?5");
fivepounds.addActionListener(this);
tenpounds = new JButton("?10");
tenpounds.addActionListener(this);
twentypounds = new JButton("?20");
twentypounds.addActionListener(this);
fiftypounds = new JButton("?50");
fiftypounds.addActionListener(this);
clearbut = new JButton("Clear");
clearbut.addActionListener(this);
refillbut = new JButton("Refill");
refillbut.addActionListener(this);
//declare & instantiate a textfield
t3=new TextField(5);
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p1=new JPanel();
p2=new JPanel();
p3=new JPanel();
p4=new JPanel();
// add some buttons to p1
p1.add(but1);
p1.add(but2);
p1.add(but3);
p1.add(but4);
p1.add(but5);
p1.add(but6);
p1.add(but7);
p1.add(but8);
p1.add(but9);
p1.add(but0);
//add the text area field to p2
p2.add(display);
// apply the grid layout to p3
GridLayout layout3 = new GridLayout(4,1,5,5);
p3.setLayout(layout3);
p3.add(fivepounds);
p3.add(tenpounds);
p3.add(twentypounds);
p3.add(fiftypounds);
// apply grid layout to p4
GridLayout layout4 = new GridLayout(4,1,5, 5);
p4.setLayout(layout4);
p4.add(clearbut);
p4.add(enter);
p4.add(cancel);
p4.add(refillbut);
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f1.add("North", display);
f1.add("Center", p1);
f1.add("East", p4);
f1.add("West", p3);
f1.setVisible(true);
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if(state == 1)
getUserIdNo(ae);
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doPINInput(ae);
else
withdrawCash(ae);
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display.append("*");
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userCodeCount++;
if (ae.getSource() == but3)
display.append("*");
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userCodeCount++;
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if (ae.getSource() == but4)
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userCodeCount++;
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display.append("*");
userCode = userCode + "8";
userCodeCount++;
System.out.println("user id ="+userCode);
if (ae.getSource() == but9)
display.append("*");
userCode = userCode + "9";
userCodeCount++;
System.out.println("user id ="+userCode);
if (ae.getSource() == but0)
display.append("*");
userCode = userCode + "0";
userCodeCount++;
System.out.println("user id ="+userCode);
if (ae.getSource() == cancel)
display.setText("Welcome to HSBC Bank.\n Please enter your User Identification number \n");
userCode = "";
state = 2;
if (ae.getSource() == clearbut)
display.setText("Please enter your user ID number again\n");
userCode = "";
userCodeCount = 0;
if (ae.getSource() == refillbut)
refill();
if (ae.getSource() == enter)
display.setText("Please enter your PIN \n");
state = 2;
System.out.println(" User id enter button = " + userCode);
if (userCodeCount == 1)
display.setText("Please enter your PIN \n");
//userCode = "";
userCodeCount = 0;
state = 2;
//******** STATE 2 */
//******** PIN INPUT*/
public void doPINInput(ActionEvent ae)
if (ae.getSource() == but1)
{ pinCode = pinCode.concat("1");
display.append("*");
PINCount++;
if (ae.getSource() == but2)
{ pinCode = pinCode.concat("2");
display.append("*");
PINCount++;
if (ae.getSource() == but3)
{ pinCode = pinCode.concat("3");
display.append("*");
PINCount++;
if (ae.getSource() == but4)
{ pinCode = pinCode.concat("4");
display.append("*");
PINCount++;
if (ae.getSource() == but5)
{ pinCode = pinCode.concat("5");
display.append("*");
PINCount++;
if (ae.getSource() == but6)
{ pinCode = pinCode.concat("6");
display.append("*");
PINCount++;
if (ae.getSource() == but7)
{ pinCode = pinCode.concat("7");
display.append("*");
PINCount++;
if (ae.getSource() == but8)
{ pinCode = pinCode.concat("8");
display.append("*");
PINCount++;
if (ae.getSource() == but9)
{ pinCode = pinCode.concat("9");
display.append("*");
PINCount++;
if (ae.getSource() == but0)
{ pinCode = pinCode.concat("0");
display.append("*");
PINCount++;
if (ae.getSource() == clearbut)
display.setText("Please enter your PIN number again \n");
pinCode = "";
PINCount = 0;
if (ae.getSource() == cancel)
display.setText("Welcome to HSBC Bank.\n Please enter your User Identification number \n");
state = 1;
pinCode ="";
PINCount = 0;
if (ae.getSource() == refillbut)
refill();
/// ************************ THIS BUTTON SENDS THE PIN & USER CODE OVER TO THE MAIN BANK*/
/// ************************ (LINE 152) */
if (ae.getSource() == enter)
// if(HSBCobj.checkPinAndUserId(pinCode, userCode))
// display.setText("How much would you like to withdraw \n");
// else
// display.setText("Your UserId and Pin code do not match");
if(PINCount ==4)
if(HSBCobj.checkPinAndUserId(userCode,pinCode))
display.setText("Enter the amount you \n want to withdraw \n ?");
PINCount=0;
else
display.setText("Your User Identification Number \n and PIN number do not match! \n please try again\n");
//*********** STATE 3 events*/
//*********** withdrawCash*/
public void withdrawCash(ActionEvent ae)
// if (ae.getSource() == but1)
// display.append("1");
/// withdrawAmount = withdrawAmount+1;
// pinCode = pinCode.concat("2");
// System.out.println("Withdrawal Amount = "+withdrawAmount);
if(ae.getSource( ) == but1)
withdrawAmount = withdrawAmount + "1";
display.setText(withdrawAmount);
if(ae.getSource( ) == but2)
withdrawAmount = withdrawAmount + "2";
display.setText(withdrawAmount);
if(ae.getSource( ) == but3)
withdrawAmount = withdrawAmount + "3";
display.setText(withdrawAmount);
if(ae.getSource( ) == but4)
withdrawAmount = withdrawAmount + "4";
display.setText(withdrawAmount);
if(ae.getSource( ) == but5)
withdrawAmount = withdrawAmount + "5";
display.setText(withdrawAmount);
if(ae.getSource( ) == but6)
withdrawAmount = withdrawAmount + "6";
display.setText(withdrawAmount);
if(ae.getSource( ) == but7)
withdrawAmount = withdrawAmount + "7";
display.setText(withdrawAmount);
if(ae.getSource( ) == but8)
withdrawAmount = withdrawAmount + "8";
display.setText(withdrawAmount);
if(ae.getSource( ) == but9)
withdrawAmount = withdrawAmount + "9";
display.setText(withdrawAmount);
if(ae.getSource( ) == but0)
withdrawAmount = withdrawAmount + "0";
display.setText(withdrawAmount);
if (ae.getSource() == fivepounds)
withdrawAmount = withdrawAmount + "5";
display.setText(withdrawAmount);
atmBalance();
if (ae.getSource() == tenpounds)
withdrawAmount = withdrawAmount + "10";
display.setText(withdrawAmount);
atmBalance();
if (ae.getSource() == twentypounds)
withdrawAmount = withdrawAmount + "20";
display.setText(withdrawAmount);
atmBalance();
if (ae.getSource() == fiftypounds)
withdrawAmount = withdrawAmount + "50";
display.setText(withdrawAmount);
atmBalance();
// if (ae.getSource() == tenpounds)
// display.append("10");
// withdrawAmount = 10;
// pinCode = pinCode.concat("2");
// System.out.println("10 pound button pressed");
// atmBalance();
if (ae.getSource() == enter)
atmBalance();
if (ae.getSource() == refillbut)
System.out.println("refill but pressed");
refill();
if (ae.getSource() == clearbut)
System.out.println("clear but pressed");
display.setText("Enter the amount you want to withdraw \n ?");
withdrawAmount="";
if (ae.getSource() == cancel)
display.setText("Welcome to HSBC Bank.\n Please enter your User Identification number \n");
withdrawAmount="";
pinCode ="";
PINCount = 0;
userCode = "";
userCodeCount = 0;
state = 1;
}// end withdraw cash input method
// checks balace of atm and withdraws cash. Also notifies onserver if atm balance is low
public void atmBalance()
String s = withdrawAmount;
int n = Integer.parseInt(s);
if ( atmBalance >= n)
atmBalance = atmBalance - n;
System.out.println("atm balance = "+ atmBalance);
display.setText("Thankyou for using HSBC. \nYou have withdrawn ?"+n);
if (atmBalance<40)
System.out.println("atm balance is less than 40 - notify HSBC" );
setChanged();
notifyObservers(this);
/// note the refil should send a message to the controller
// advising a refil is needed. The Bank will send an engineer
// out who will fill the atm up
}// end atmBalance method
/// note the refil should send a message to the controller
/// then th coontroller will send a message to this method to fill machine
/// (this is simulating a clerk filling atm)
public void refill()
System.out.println("in refill method" );
atmBalance = 200;
System.out.println("Atm has been refilled. Atm balance = " + atmBalance);
// setChanged();
// notifyObservers(this);
}// end refill method
// NOTE SURE ABOUT THIS - DO I USE THE UPDATE METHOD TO NOTIFY HSBC THAT ATM REQUIRES FILLING
// THIS IS THE WRONG PART OF THE PROGRAM (SHOULD BE IN HSBC) - IGNORE
public void update(Observable gm1, Object gameObj)
display.setText("Congratulations");
}//end update method
}// end Atm method
}// end Assignment2 clas
[\code]I wasn't trying to annoy anyone at all.
I'm new to java and have been told that using the observer/observable model is not considered basic java. So that is the only reason I posted it in this section. At the same time i feel that the bit I'm struggling with is actually basic - hence posting it in the basic section. I'm not sure if people of all abilities check all forums or just the ones they feel at at their standard.
So appologies if you've taken offence. -
Correlation Problem in OpenScript with solveGroupJavaScript(String path).
I am having problems with the correlation of solveGroupJavaScript(String path). My script is throwing the following error.
Failed to solve JavaScript variable web.jscript.httpseformssitch...
Does anyone know how to switch of this particular type of correlation or how I can change my script to ignore it?
I have tried commenting out the line, this failed as I expected it would.
With out going into too much detail my script is a record of a manager accessing an Oracle form which allows them view only of claims made by their staff.
The scenario is
Page 1 of script
Access Form
Click on view claims bar with hidden button
Page 2
A table drops down of claims
A claim is selected to view
Page 3
Claim is shown
Page 4
Return to start
Close form
The error occurs when returning to the view claim page before closing form. I believe the problem is that the script does not find the button to view claims. On this second visit the form has reverted back to it original state with drop down table has gone. Whether it’s that that confusing the script I don’t know.
This is the line from the script
http.solveGroupJavaScript(http.javaScriptPath(
"web.jscript.httpseformssitchris_21", 1, 3, 2, 0));
And this is the post line
http
.param("source",
"{{web.jscript.httpseformssitchris_21,form1:commandButton1}}"),
The hidden button to view claims is called commandButton1. I refer to it as a hidden as it is hidden in a bar that runs across the form.
Any help would be appreciated.
Edited by: user9020510 on 09-Jul-2010 06:10I have found out how to edit my script
comment out the first line and the post line should be
.param("source","form1:commandButton1")),
/*"{{web.jscript.httpseformssitchris_21,form1:commandButton1}}")),*/
I do not fuuly understand this but it worked.
I hope this may help others
Edited by: user9020510 on 12-Jul-2010 04:53 -
Set Session State with Shuttle items
Is it possible to have session state set with each item selected in a shuttle? You have a shuttle with 4 possible options, you select item 2 from the left portion of shuttle and it is moved to the right.. Can you set the session state at that point?
What I am trying to do is take the session state after change in the control and use it to populate a text field below. The returned values are used in a sql select to populate the text box with a looked up value...
Thank you,
Tony Miller
Ruckersville, VATexasApexDeveloper wrote:
Won't this just push the last items value in, as apposed to appending the value?
Tony,
No. Because for shuttle items the return value is stored as colon delimited string.
Means after each change you will have a colon delimited string in the session state with selected values(moved to right).
See this http://apex.oracle.com/pls/apex/f?p=46417:47 -
Prepared Statement with ORDER BY
I am trying to use order by with prepared statement but it is not ordering.
String sql = "SELECT * FROM MATERIAL WHERE (LOWER(NAMEE) LIKE ('%' || ? || '%') ORDER BY ? ";
PreparedStatement ps=CM.getStatement(sql);
ps.setString(1,p);
ps.setString(2,sort);
ResultSet r = ps.executeQuery();
Can any one tell me how do I use prepared statement with order byYou can not parameterize column names and such, only literals. You should build the ORDER BY clause dynamically.
-
Replacing a special character in a string with another string
Hi
I need to replace a special character in a string with another string.
Say there is a string - "abc's def's are alphabets"
and i need to replace all the ' (apostrophe) with &apos& ..which should look like as below
"abc&apos&s def&apos&s are alphabets" .
Kindly let me know how this requirement can be met.
Regards
SukumariREPLACE
Syntax Forms
Pattern-based replacement
1. REPLACE [{FIRST OCCURRENCE}|{ALL OCCURRENCES} OF]
pattern
IN [section_of] dobj WITH new
[IN {BYTE|CHARACTER} MODE]
[{RESPECTING|IGNORING} CASE]
[REPLACEMENT COUNT rcnt]
{ {[REPLACEMENT OFFSET roff]
[REPLACEMENT LENGTH rlen]}
| [RESULTS result_tab|result_wa] }.
Position-based replacement
2. REPLACE SECTION [OFFSET off] [LENGTH len] OF dobj WITH new
[IN {BYTE|CHARACTER} MODE].
Effect
This statement replaces characters or bytes of the variable dobj by characters or bytes of the data object new. Here, position-based and pattern-based replacement are possible.
When the replacement is executed, an interim result without a length limit is implicitly generated and the interim result is transferred to the data object dobj. If the length of the interim result is longer than the length of dobj, the data is cut off on the right in the case of data objects of fixed length. If the length of the interim result is shorter than the length of dobj, data objects of fixed length are filled to the right with blanks or hexadecimal zeroes. Data objects of variable length are adjusted. If data is cut off to the right when the interim result is assigned, sy-subrc is set to 2.
In the case of character string processing, the closing spaces are taken into account for data objects dobj of fixed length; they are not taken into account in the case of new.
System fields
sy-subrc Meaning
0 The specified section or subsequence was replaced by the content of new and the result is available in full in dobj.
2 The specified section or subsequence was replaced in dobj by the contents of new and the result of the replacement was cut off to the right.
4 The subsequence in sub_string was not found in dobj in the pattern-based search.
8 The data objects sub_string and new contain double-byte characters that cannot be interpreted.
Note
These forms of the statement REPLACE replace the following obsolete form:
REPLACE sub_string WITH
Syntax
REPLACE sub_string WITH new INTO dobj
[IN {BYTE|CHARACTER} MODE]
[LENGTH len].
Extras:
1. ... IN {BYTE|CHARACTER} MODE
2. ... LENGTH len
Effect
This statement searches through a byte string or character string dobj for the subsequence specified in sub_string and replaces the first byte or character string in dobj that matches sub_string with the contents of the data object new.
The memory areas of sub_string and new must not overlap, otherwise the result is undefined. If sub_string is an empty string, the point before the first character or byte of the search area is found and the content of new is inserted before the first character.
During character string processing, the closing blank is considered for data objects dobj, sub_string and new of type c, d, n or t.
System Fields
sy-subrc Meaning
0 The subsequence in sub_string was replaced in the target field dobj with the content of new.
4 The subsequence in sub_string could not be replaced in the target field dobj with the contents of new.
Note
This variant of the statement REPLACE will be replaced, beginning with Release 6.10, with a new variant.
Addition 1
... IN {BYTE|CHARACTER} MODE
Effect
The optional addition IN {BYTE|CHARACTER} MODE determines whether byte or character string processing will be executed. If the addition is not specified, character string processing is executed. Depending on the processing type, the data objects sub_string, new, and dobj must be byte or character type.
Addition 2
... LENGTH len
Effect
If the addition LENGTH is not specified, all the data objects involved are evaluated in their entire length. If the addition LENGTH is specified, only the first len bytes or characters of sub_string are used for the search. For len, a data object of the type i is expected.
If the length of the interim result is longer than the length of dobj, data objects of fixed length will be cut off to the right. If the length of the interim result is shorter than the length of dobj, data objects of fixed length are filled to the right with blanks or with hexadecimal 0. Data objects of variable length are adapted.
Example
After the replacements, text1 contains the complete content "I should know that you know", while text2 has the cut-off content "I should know that".
DATA: text1 TYPE string VALUE 'I know you know',
text2(18) TYPE c LENGTH 18 VALUE 'I know you know',
sub_string TYPE string VALUE 'know',
new TYPE string VALUE 'should know that'.
REPLACE sub_string WITH new INTO text1.
REPLACE sub_string WITH new INTO text2. -
Writting a SQL statement with Java
Hello,
I would like to perform an interrogation of my database but I have some trouble... here is the code I use (with MySQL) :
String requete = "SELECT * FROM produit WHERE NomChimique ='butanol'";
rs = stmt.executeQuery (requete); With this requete I find the record I have in my db. But with the following string the record is not found String requete = "SELECT * FROM produit WHERE NomChimique ='(+)-2-BUTANOL'";What I have not understand ?
Thank you for your help,
Jean-MarieI perform a first SELECT statement without WHERE,
then I copy and past the value of the two exemples I
give, the first succed, the second not...
I am a little bit disappointed
Jean-Marieyou should only be disappointed in yourself. this is NOT a Java problem. this is a Jean-Marie problem.
one of the following is true...
- the record does not exist
- you are fouling up the result set handling and not noticing the record
- something is going wrong with your query parsing
So...
make sure it exists.
make sure you are connecting to the database you think you are.
check over your result set code
use preparedstatements
ff all those fail then post your code (USING THE CODE TAGS) and someone will be delighted to help. -
Switch statement with JRadioButton!!!
hi there guys....
Good day/!
can anyone give me some short example on switch statements with JRadioButton???* Radio_Test.java
package basics;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Radio_Test extends JFrame implements ActionListener{
public Radio_Test() {
setTitle("Radio Test");
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
buttonGroup1 = new ButtonGroup();
toolbar = new JToolBar();
btn1 = new JRadioButton("btn1");
btn2 = new JRadioButton("btn2");
btn3 = new JRadioButton("btn3");
btn4 = new JRadioButton("btn4");
//init button 1
buttonGroup1.add(btn1);
btn1.setActionCommand("1");
btn1.addActionListener(this);
toolbar.add(btn1);
//init button 2
buttonGroup1.add(btn2);
btn2.setActionCommand("2");
btn2.addActionListener(this);
toolbar.add(btn2);
//init button 3
//init button 4
getContentPane().add(toolbar, BorderLayout.NORTH);
pack();
public void actionPerformed(final ActionEvent e) {
JRadioButton source = (JRadioButton)e.getSource();
int action = Integer.parseInt(source.getActionCommand());
showStatus(action);
private void showStatus(final int action){
switch(action){
case 1:
JOptionPane.showMessageDialog(this, "Choice was 1");
break;
case 2:
JOptionPane.showMessageDialog(this, "Choice was 2");
break;
case 3:
JOptionPane.showMessageDialog(this, "Choice was 3");
break;
default:
JOptionPane.showMessageDialog(this, "Choice must be 1, 2, or 3");
public static void main(final String args[]) { new Radio_Test().setVisible(true); }
private ButtonGroup buttonGroup1;
private JRadioButton btn1,btn2,btn3,btn4;
private JToolBar toolbar;
}
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