Source Code : Determining When a Component Is Added or Removed from a Container

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Determining When a Component Is Added or Removed from a Container

  

import java.awt.Component;
import java.awt.event.ContainerAdapter;
import java.awt.event.ContainerEvent;
import java.awt.event.ContainerListener;

import javax.swing.JFrame;

public class Main {
  public static void main() {

    ContainerListener listener = new ContainerAdapter() {
      public void componentAdded(ContainerEvent evt) {
        
        Component c = evt.getChild();
      }

      public void componentRemoved(ContainerEvent evt) {
        
        Component c = evt.getChild();
      }
    };

    JFrame frame = new JFrame();
    frame.addContainerListener(listener);
  }
}

   
    
  

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