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| package a1;
import javax.swing.*;
import a2.*
public class hhh {
public static void main(String[] args) {
JFrame F1 = new JFrame("principale");
F1.setSize(500,500);
F1.setVisible(true);
switch (args[])
case 0 :
bbb B = new bbb ();
F1.setContentPane(B);brack;
case 0 :
ccc B = new ccc ();
F1.setContentPane(B);brack;
}
}
package a2;
import javax.swing.*;
public class bbb extends JPanel {
public bbb (){
JButton B1 = new JButton ("OK");
this.add(B1);
}
}
public class ccc extends JPanel {
public ccc (){
JButton B1 = new JButton ("OK");
this.add(B1);
}
} |
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