I had a problem that I posted before but got no clear solution
How to prevent JFrame from closing.
So I am posting a SSCCE may be this might help in better u
So have completed the solution with the help provided by MadProgrammer amd mKorbel and here is the updated MYApp class
package myApp;
import java.awt.Frame;
import java.awt.Window;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import javax.swing.JFrame;
import App2.Applic2;
public class MYApp {
@SuppressWarnings({ "unchecked", "rawtypes" })
public static void main(String arg[]){
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setTitle("Application frame 1");
f.setSize(200,200);
f.setVisible(true);
Class cls = Applic2.class;
Object[] actuals = { new String[] { "" } };
Method m = null;
try {
m=cls.getMethod("main", new Class[] { String[].class } );
Method[] m1 =Frame.class.getDeclaredMethods();
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
m.invoke(null,actuals);
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvocationTargetException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Frame[] f2 = JFrame.getFrames();
// Window[] f23= JFrame.getFrames();
for(Frame fx: f2){
System.out.println(fx.getTitle());
// fx.setVisible(false);
if (fx instanceof JFrame) {
JFrame aFrame = (JFrame)fx;
aFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
}
}
}
}