Drawing a Ractangle with rounded corners using Java 2D Graphics API
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.RoundRectangle2D;
/**
* Displays a JFrame and draws a rounded ractangle on it using the Java 2D Graphics API
*
*
*/
public class Java2DFrame extends javax.swing.JFrame {
/**
* Creates a new instance of Java2DFrame
*/
public Java2DFrame() {
initComponents();
}
/**
* This is the method where the rounded rectangle is drawn.
*
* @param g The graphics object
*/
public void paint(Graphics g) {
Graphics2D graphics2 = (Graphics2D) g;
RoundRectangle2D roundedRectangle = new RoundRectangle2D.Float(100, 100, 240, 160, 10, 10);
graphics2.draw(roundedRectangle);
}
//
private void initComponents() {
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(0, 400, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(0, 300, Short.MAX_VALUE)
);
pack();
}//
/**
* Starts the program
*
* @param args the command line arguments
*/
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Java2DFrame().setVisible(true);
}
});
}
}
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