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import javax.swing.DebugGraphics;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.RepaintManager;
public class Main {
public static void main(String[] a) {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JButton bn = new JButton();
RepaintManager repaintManager = RepaintManager.currentManager(bn);
repaintManager.setDoubleBufferingEnabled(false);
bn.setDebugGraphicsOptions(DebugGraphics.BUFFERED_OPTION | DebugGraphics.FLASH_OPTION
| DebugGraphics.LOG_OPTION);
frame.add(bn);
frame.setSize(300, 300);
frame.setVisible(true);
frame.add(bn);
}
}
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