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*/
package javaapplication3;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Graphics2D;
import javax.swing.JFrame;
import javax.swing.JPanel;
class Surface extends JPanel {
private void doDrawing(Graphics g) {
Graphics2D g2d = (Graphics2D) g;
g2d.drawLine(30, 30, 200, 30);
g2d.drawLine(30, 30, 30, 180);
g2d.drawLine(200, 180, 200, 30);
g2d.drawLine(30, 180, 200, 180);
g2d.drawLine(70, 70, 240, 70);
g2d.drawLine(70, 70, 70, 210);
g2d.drawLine(240, 210, 240, 70);
g2d.drawLine(70, 210, 240, 210);
g2d.drawLine(30, 30, 70, 70);
g2d.drawLine(200, 180, 240, 210);
g2d.drawLine(200, 30, 240, 70);
g2d.drawLine(30, 180, 70, 210);
}
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
doDrawing(g);
}
}
public class LinesEx extends JFrame {
public LinesEx() {
initUI();
}
private void initUI() {
add(new Surface());
setTitle("Lines");
setSize(350,250);
setLocationRelativeTo(null);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
EventQueue.invokeLater(() -> {
LinesEx ex = new LinesEx();
ex.setVisible(true);
}
);
}
private void setSize(int width) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
}
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