Hey guys,

I'm having a bit of a problem.

I have an application that is using a main frame1 and a second frame2 that is called from frame1.

I need to set a textBox in Frame1 based on input from Frame2 but i can't figure out how to do it.

any help would be appreciated.

Quote :

" public static void main(String args[]) { public void run() { new Frame1().setVisible(true); } } "

Quote :

" public class Frame1 extends javax.swing.JFrame implements Observer{ /** Creates new form UI */ public Frame1() { initComponents(); } . . . private void findVIPBtnActionPerformed(java.awt.event.ActionEvent evt) { Frame2 myFrame2=new Frame2(); . . . private void methodToGet VariableA from Frame2(){ //This is what I'm having trouble with } } "

Quote :

" public class Frame2 extends javax.swing.JFrame{ . . . public Frame2() { initComponents(); } . . . private void configBtnActionPerformed(java.awt.event.ActionEvent evt) { set a VarableA this.dispose(); "

4/7/2011 1:30:47 PM

Is VariableA declared to be public, or does it have a public "getter" method (the better design pattern)?

If it is, you should be able to access it, ideally by calling that "getter" method:

public class Frame1 extends javax.swing.JFrame implements Observer{
 //stuff
 Frame2 myFrame2 = new Frame2();
 //more stuff
 private void methodNeedingVariableA(){
  //stuff
  a = myFrame2.getA();
  //more stuff
 }
 //still more stuff
}
//...
public class Frame2 extends javax.swing.JFrame{
 //stuff
 private string variableA;
 //more stuff
 public string getA(){return variableA;}
 //still more stuff
}

4/7/2011 1:44:43 PM

The problem I'm having is that I want to get the variable from Frame2 only if the config button is hit (which also disposes of Frame2).


In Frame1 I have this code:

private void findVIPBtnActionPerformed(java.awt.event.ActionEvent evt) { 

Frame2 myFrame2=new Frame2();

this.vipAddressField.setText(myFrame2.returnVariableA().toString());
.
.

4/7/2011 2:12:39 PM

It's been a few years since I've used swing so there are probably better answers but here goes.

Frame2 myFrame2=new Frame2();

this.vipAddressField.setText(myFrame2.returnVariableA().toString());

class Frame1{
  private variable_set_by_frame2;
  JFrame myFrame2 = new Frame2(this);

  public set_function_used_by_frame2(someVar){
    variable_set_by_frame2 = someVar;
  }
}

class Frame2{
  public Frame2(JFrame parentFrame){
    myParentFrame = parentFrame;
  }
  
  private void configBtnActionPerformed(java.awt.event.ActionEvent evt) { 
    myParentFrame.set_function_used_by_frame2(VariableA);
    this.dispose();
  }
}

4/8/2011 12:04:58 AM