Here's one that should be a piece of cake for you java masters :)

[erekose666]

I have this program right now, but I need to modify it to output to the JTextPane.
What I mean is, when someone clicks on the 1 button, it needs to output to the TextArea a 1. None of the add, subtract, multiply, divide symbols need to....just the numbers and the decimal point. I have no idea how to do this. Can anyone help me? Here's the program.

/*
* Calculator.java
*
* Created on December 12, 2006, 10:00 PM
* Created by Ken Garlitz
*/

/**
*
* @author Erekose
*/
public class Calculator extends javax.swing.JFr ame {

/** Creates new form Calculator */
public Calculator() {
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.
*/
// <editor-fold defaultstate="c ollapsed" desc=" Generated Code ">
private void initComponents( ) {
jScrollPane1 = new javax.swing.JSc rollPane();
jTextPane1 = new javax.swing.JTe xtPane();
jButton1 = new javax.swing.JBu tton();
jButton2 = new javax.swing.JBu tton();
jButton3 = new javax.swing.JBu tton();
jButton4 = new javax.swing.JBu tton();
jButton5 = new javax.swing.JBu tton();
jButton6 = new javax.swing.JBu tton();
jButton7 = new javax.swing.JBu tton();
jButton8 = new javax.swing.JBu tton();
jButton9 = new javax.swing.JBu tton();
jButton10 = new javax.swing.JBu tton();
jButton11 = new javax.swing.JBu tton();
jButton12 = new javax.swing.JBu tton();
jButton13 = new javax.swing.JBu tton();
jButton14 = new javax.swing.JBu tton();
jButton15 = new javax.swing.JBu tton();
jButton16 = new javax.swing.JBu tton();

setDefaultClose Operation(javax .swing.WindowCo nstants.EXIT_ON _CLOSE);
jScrollPane1.se tViewportView(j TextPane1);

jButton1.setFon t(new java.awt.Font(" Tahoma", 1, 12));
jButton1.setTex t("7");

jButton2.setFon t(new java.awt.Font(" Tahoma", 1, 12));
jButton2.setTex t("8");

jButton3.setFon t(new java.awt.Font(" Tahoma", 1, 12));
jButton3.setTex t("9");

jButton4.setFon t(new java.awt.Font(" Tahoma", 1, 12));
jButton4.setTex t("/");

jButton5.setFon t(new java.awt.Font(" Tahoma", 1, 12));
jButton5.setTex t("4");

jButton6.setFon t(new java.awt.Font(" Tahoma", 1, 12));
jButton6.setTex t("5");

jButton7.setFon t(new java.awt.Font(" Tahoma", 1, 12));
jButton7.setTex t("6");

jButton8.setFon t(new java.awt.Font(" Tahoma", 1, 12));
jButton8.setTex t("*");

jButton9.setFon t(new java.awt.Font(" Tahoma", 1, 12));
jButton9.setTex t("1");

jButton10.setFo nt(new java.awt.Font(" Tahoma", 1, 12));
jButton10.setTe xt("2");

jButton11.setFo nt(new java.awt.Font(" Tahoma", 1, 12));
jButton11.setTe xt("3");

jButton12.setFo nt(new java.awt.Font(" Tahoma", 1, 12));
jButton12.setTe xt("-");

jButton13.setFo nt(new java.awt.Font(" Tahoma", 1, 12));
jButton13.setTe xt("0");
jButton13.addAc tionListener(ne w java.awt.event. ActionListener( ) {
public void actionPerformed (java.awt.event .ActionEvent evt) {
jButton13Action Performed(evt);
}
});
jButton13.addKe yListener(new java.awt.event. KeyAdapter() {
public void keyPressed(java .awt.event.KeyE vent evt) {
jButton13KeyPre ssed(evt);
}
});

jButton14.setFo nt(new java.awt.Font(" Tahoma", 1, 12));
jButton14.setTe xt(".");

jButton15.setFo nt(new java.awt.Font(" Tahoma", 1, 12));
jButton15.setTe xt("=");

jButton16.setFo nt(new java.awt.Font(" Tahoma", 1, 12));
jButton16.setTe xt("+");

org.jdesktop.la yout.GroupLayou t layout = new org.jdesktop.la yout.GroupLayou t(getContentPan e());
getContentPane( ).setLayout(lay out);
layout.setHoriz ontalGroup(
layout.createPa rallelGroup(org .jdesktop.layou t.GroupLayout.L EADING)
.add(layout.cre ateSequentialGr oup()
.addContainerGa p()
.add(layout.cre ateParallelGrou p(org.jdesktop. layout.GroupLay out.LEADING)
.add(jScrollPan e1, org.jdesktop.la yout.GroupLayou t.DEFAULT_SIZE, 366, Short.MAX_VALUE )
.add(layout.cre ateSequentialGr oup()
.add(layout.cre ateParallelGrou p(org.jdesktop. layout.GroupLay out.LEADING, false)
.add(jButton13, 0, 0, Short.MAX_VALUE )
.add(jButton5, org.jdesktop.la yout.GroupLayou t.DEFAULT_SIZE, org.jdesktop.la yout.GroupLayou t.DEFAULT_SIZE, Short.MAX_VALUE )
.add(jButton9, org.jdesktop.la yout.GroupLayou t.DEFAULT_SIZE, org.jdesktop.la yout.GroupLayou t.DEFAULT_SIZE, Short.MAX_VALUE )
.add(jButton1, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E, 87, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E))
.addPreferredGa p(org.jdesktop. layout.LayoutSt yle.RELATED)
.add(layout.cre ateParallelGrou p(org.jdesktop. layout.GroupLay out.LEADING)
.add(jButton10, 0, 0, Short.MAX_VALUE )
.add(jButton14, org.jdesktop.la yout.GroupLayou t.DEFAULT_SIZE, 86, Short.MAX_VALUE )
.add(jButton6, org.jdesktop.la yout.GroupLayou t.DEFAULT_SIZE, 86, Short.MAX_VALUE )
.add(jButton2, org.jdesktop.la yout.GroupLayou t.DEFAULT_SIZE, 86, Short.MAX_VALUE ))
.addPreferredGa p(org.jdesktop. layout.LayoutSt yle.RELATED)
.add(layout.cre ateParallelGrou p(org.jdesktop. layout.GroupLay out.LEADING)
.add(jButton7, org.jdesktop.la yout.GroupLayou t.DEFAULT_SIZE, 91, Short.MAX_VALUE )
.add(org.jdeskt op.layout.Group Layout.TRAILING , jButton3, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E, 90, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E)
.add(jButton15, org.jdesktop.la yout.GroupLayou t.DEFAULT_SIZE, 91, Short.MAX_VALUE )
.add(layout.cre ateSequentialGr oup()
.addPreferredGa p(org.jdesktop. layout.LayoutSt yle.RELATED)
.add(jButton11, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E, 91, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E)))
.addPreferredGa p(org.jdesktop. layout.LayoutSt yle.RELATED)
.add(layout.cre ateParallelGrou p(org.jdesktop. layout.GroupLay out.TRAILING)
.add(org.jdeskt op.layout.Group Layout.LEADING, layout.createSe quentialGroup()
.add(layout.cre ateParallelGrou p(org.jdesktop. layout.GroupLay out.LEADING)
.add(jButton16, 0, 0, Short.MAX_VALUE )
.add(jButton12, 0, 0, Short.MAX_VALUE )
.add(layout.cre ateSequentialGr oup()
.add(jButton8, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E, 84, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E)
.addPreferredGa p(org.jdesktop. layout.LayoutSt yle.RELATED)))
.addPreferredGa p(org.jdesktop. layout.LayoutSt yle.RELATED))
.add(jButton4, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E, 84, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E))))
.addContainerGa p())
);
layout.setVerti calGroup(
layout.createPa rallelGroup(org .jdesktop.layou t.GroupLayout.L EADING)
.add(layout.cre ateSequentialGr oup()
.addContainerGa p()
.add(jScrollPan e1, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E, org.jdesktop.la yout.GroupLayou t.DEFAULT_SIZE, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E)
.addPreferredGa p(org.jdesktop. layout.LayoutSt yle.RELATED)
.add(layout.cre ateParallelGrou p(org.jdesktop. layout.GroupLay out.BASELINE)
.add(jButton4, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E, 66, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E)
.add(jButton3, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E, 66, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E)
.add(jButton2, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E, 64, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E)
.add(jButton1, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E, 65, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E))
.add(layout.cre ateParallelGrou p(org.jdesktop. layout.GroupLay out.LEADING)
.add(layout.cre ateSequentialGr oup()
.addPreferredGa p(org.jdesktop. layout.LayoutSt yle.RELATED)
.add(layout.cre ateParallelGrou p(org.jdesktop. layout.GroupLay out.BASELINE)
.add(jButton5, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E, 65, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E)
.add(jButton7, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E, 64, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E)
.add(jButton6, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E, 64, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E)))
.add(layout.cre ateSequentialGr oup()
.add(6, 6, 6)
.add(jButton8,

[erekose666]

Here's the rest of the code:

org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E, 65, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E)))
.addPreferredGa p(org.jdesktop. layout.LayoutSt yle.RELATED)
.add(layout.cre ateParallelGrou p(org.jdesktop. layout.GroupLay out.LEADING)
.add(jButton11, org.jdesktop.la yout.GroupLayou t.DEFAULT_SIZE, 67, Short.MAX_VALUE )
.add(jButton12, org.jdesktop.la yout.GroupLayou t.DEFAULT_SIZE, 67, Short.MAX_VALUE )
.add(layout.cre ateParallelGrou p(org.jdesktop. layout.GroupLay out.LEADING, false)
.add(org.jdeskt op.layout.Group Layout.TRAILING , jButton9, org.jdesktop.la yout.GroupLayou t.DEFAULT_SIZE, 67, Short.MAX_VALUE )
.add(org.jdeskt op.layout.Group Layout.TRAILING , jButton10, org.jdesktop.la yout.GroupLayou t.DEFAULT_SIZE, org.jdesktop.la yout.GroupLayou t.DEFAULT_SIZE, Short.MAX_VALUE )))
.addPreferredGa p(org.jdesktop. layout.LayoutSt yle.RELATED)
.add(layout.cre ateParallelGrou p(org.jdesktop. layout.GroupLay out.LEADING)
.add(layout.cre ateParallelGrou p(org.jdesktop. layout.GroupLay out.BASELINE)
.add(jButton14, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E, 66, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E)
.add(jButton15, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E, 66, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E))
.add(jButton16, org.jdesktop.la yout.GroupLayou t.DEFAULT_SIZE, 67, Short.MAX_VALUE )
.add(jButton13, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E, 66, org.jdesktop.la yout.GroupLayou t.PREFERRED_SIZ E))
.addContainerGa p())
);
pack();
}// </editor-fold>

private void jButton13KeyPre ssed(java.awt.e vent.KeyEvent evt) {
// TODO add your handling code here:
}

private void jButton13Action Performed(java. awt.event.Actio nEvent evt) {


// TODO add your handling code here:
}

/**
* @param args the command line arguments
*/
public static void main(String args[]) {
java.awt.EventQ ueue.invokeLate r(new Runnable() {
public void run() {
new Calculator().se tVisible(true);
}
});
}

// Variables declaration - do not modify
private javax.swing.JBu tton jButton1;
private javax.swing.JBu tton jButton10;
private javax.swing.JBu tton jButton11;
private javax.swing.JBu tton jButton12;
private javax.swing.JBu tton jButton13;
private javax.swing.JBu tton jButton14;
private javax.swing.JBu tton jButton15;
private javax.swing.JBu tton jButton16;
private javax.swing.JBu tton jButton2;
private javax.swing.JBu tton jButton3;
private javax.swing.JBu tton jButton4;
private javax.swing.JBu tton jButton5;
private javax.swing.JBu tton jButton6;
private javax.swing.JBu tton jButton7;
private javax.swing.JBu tton jButton8;
private javax.swing.JBu tton jButton9;
private javax.swing.JSc rollPane jScrollPane1;
private javax.swing.JTe xtPane jTextPane1;
// End of variables declaration

}

[erekose666]

Isn't there some way to do like a .append to do this?
My big problem is like entering a number that is more than one digit
Say i want to type in 4562 and have it appear in the screen above
This program doesnt need to actually DO any calculations
Just show the numbers that are pressed on the keypad

[erekose666]

OK let's make this easier for everyone :)
I know that doing an OnActionPerform ed
and then doing jTextPane1.setT ext("1") will send a 1 to the TextPane

My question is...how do i send 4563? After pressing the 4 button, the TextPane shows a 4, but then when I press the 5 button the TextPane shows a 5. I want to be able to send the 4, then put the 5 after it then the 6 etc etc.


Any help?

[r035198x]

OK let's make this easier for everyone :)
I know that doing an OnActionPerform ed
and then doing jTextPane1.setT ext("1") will send a 1 to the TextPane

My question is...how do i send 4563? After pressing the 4 button, the TextPane shows a 4, but then when I press the 5 button the TextPane shows a 5. I want to be able to send the 4, then put the 5 after it then the 6 etc etc.


Any help?

Each button should have an actionCommand set for it(Which is simply a String). eg button 1 would have "1" as its command etc.

In the actionPerformed method you then do

 String command = event.getActionCommand(); 
if(command.equals("1")) {
    String current = pane.getText();
    pane.setText(current + "1");//do the append
}
 

[trinisoftinc]

public void actionPerformed (ActionEvent ae) {
//firstTime is boolean. It helps you know if the number is the first
//textPane is a JTextBox(or JTextArea anyhow)
if(firstTime) {
//just display the typed key
textPane.setTex t(ae.getActionC ommand());
firstTime = false;
}
else
{
//get the content of the textPane
String ss = textPane.getTex t();
//concat it to the typed key
ss = ss + ae.getActionCom mand();
//display the concated(if there's anything like that)
textPane.setTex t(ss);
}
}
please dont reply if this works just lookup to the sky and shout a very big thank you