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lavanya
button in java
3 Answer(s)      6 years and 6 months ago
Posted in : Java Beginners

how can i compare names of two buttons after they are clicked?

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October 19, 2010 at 11:20 PM


Hi,

If you are developing a swing application then you can use the ActionListener class as shown below:

public class MyClass implements ActionListener {
    ...
    //where initialization occurs:
        button.addActionListener(this);
    ...
    public void actionPerformed(ActionEvent e) {
        System.out.println("button clicked");
    }
}

Thanks



October 20, 2010 at 11:15 AM


Hi Friend,

You can use the following code:

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
class Buttons extends JFrame{
    Buttons(){
        MyClass m=new MyClass();
    JFrame f=new JFrame();
    JButton b1=new JButton("A");
    JButton b2=new JButton("B");

    JPanel p=new JPanel();
    p.add(b1);
    p.add(b2);
    add(p);
    setVisible(true);
    pack();
    b1.addActionListener(m);
    b2.addActionListener(m);
}
class MyClass implements ActionListener {
public void actionPerformed(ActionEvent e){
     String choice = e.getActionCommand();
     JOptionPane.showMessageDialog(null, "You have clicked: "+choice);
  }
}
public static void main(String args[]){
    Buttons b=new Buttons();
}
}

Thanks



October 27, 2010 at 8:12 PM


hello, thank u for that kind reply. but I'm not using swings. i haven't learned that part yet,just a beginner.I'm using simple awt components. i want to keep the labels on the button same yet identify them individually. how can i do that?? please find time to respond. Thanks.










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