graphgui/BasicGUI.java

   1
   2 import javax.swing.SwingUtilities;
   3 import javax.swing.JFrame;
   4 import javax.swing.JPanel;
   5 import javax.swing.BorderFactory;
   6 import java.awt.Color;
   7 import java.awt.Dimension;
   8 import java.awt.Graphics;
   9 import java.awt.event.MouseEvent;
  10 import java.awt.event.MouseListener;
  11 import java.awt.event.MouseAdapter;
  12 import java.awt.event.MouseMotionListener;
  13 import java.awt.event.MouseMotionAdapter;
  14
  15 public class BasicGUI1 {
  16
  17     public static void main(String[] args) {
  18
  19         SwingUtilities.invokeLater(new Runnable() {
  20             public void run() {
  21                 createAndShowGUI();
  22             }
  23         });
  24     }
  25
  26     private static void createAndShowGUI() {
  27         JFrame f = new JFrame("Basic GUI #1 - Vertical string of shapes");
  28         f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  29         f.add(new MyPanel());
  30         f.setSize(250,250);
  31         f.setVisible(true);
  32     }
  33
  34 }
  35
  36 class MyPanel extends JPanel {
  37
  38     public MyPanel() {
  39         setBorder(BorderFactory.createLineBorder(Color.black));
  40     }
  41
  42     public Dimension getPreferredSize() {
  43         return new Dimension(250,200);
  44     }
  45
  46     public void paintComponent(Graphics g) {
  47         super.paintComponent(g);
  48         g.setColor(Color.RED);
  49         g.fillRect(30,30,20,20);
  50         g.setColor(Color.BLACK);
  51         g.drawRect(30,30,20,20);
  52     }
  53 }
  54