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Reactangle example in java


                    Swing Rectangle example



Rectangles
 

To draw rectangles, we use the drawRect() method. To fill rectangles with the current color, we use the fillRect() method.
 

package PRACTICEPROGRAM;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;


class DrawPanel extends JPanel {
 

    public void paintComponent(Graphics g) {
        super.paintComponent(g);

        Graphics2D g2d = (Graphics2D) g;

            g2d.setColor(new Color(212, 212, 212));
            g2d.drawRect(10, 15, 90, 60);
            g2d.drawRect(130, 15, 90, 60);
            g2d.drawRect(250, 15, 90, 60);
            g2d.drawRect(10, 105, 90, 60);
            g2d.drawRect(130, 105, 90, 60);
            g2d.drawRect(250, 105, 90, 60);
            g2d.drawRect(10, 195, 90, 60);
            g2d.drawRect(130, 195, 90, 60);
            g2d.drawRect(250, 195, 90, 60);

            g2d.setColor(new Color(125, 167, 116));
            g2d.fillRect(10, 15, 90, 60);

            g2d.setColor(new Color(42, 179, 231));
            g2d.fillRect(130, 15, 90, 60);

            g2d.setColor(new Color(70, 67, 123));
            g2d.fillRect(250, 15, 90, 60);

            g2d.setColor(new Color(130, 100, 84));
            g2d.fillRect(10, 105, 90, 60);

            g2d.setColor(new Color(252, 211, 61));
            g2d.fillRect(130, 105, 90, 60);

            g2d.setColor(new Color(241, 98, 69));
            g2d.fillRect(250, 105, 90, 60);

            g2d.setColor(new Color(217, 146, 54));
            g2d.fillRect(10, 195, 90, 60);

            g2d.setColor(new Color(63, 121, 186));
            g2d.fillRect(130, 195, 90, 60);

            g2d.setColor(new Color(31, 21, 1));
            g2d.fillRect(250, 195, 90, 60);
    }
}

public class RectanglesExample extends JFrame {

    public RectanglesExample() {
        initUI();
    }

    public final void initUI() {

        DrawPanel dpnl = new DrawPanel();
        add(dpnl);

        setSize(360, 300);
        setTitle("Rectangles");
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {

        SwingUtilities.invokeLater(new Runnable() {

            public void run() {
                RectanglesExample ex = new RectanglesExample();
                ex.setVisible(true);
            }
        });
    }
}
 

In the example we draw nine colored rectangles.
g2d.setColor(new Color(212, 212, 212));
g2d.drawRect(10, 15, 90, 60);

We set the color of the outline of the rectangle to a soft gray color, so that it does not interfere with the fill color. To draw the outline of the rectangle, we use the drawRect() method. The first two parameters are the x and y values. The third and fourth are width and height.

g2d.fillRect(10, 15, 90, 60);


To fill the rectangle with a color, we use the fillRect() method.  


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