50 lines
1.2 KiB
Java
50 lines
1.2 KiB
Java
import java.awt.*;
|
|
|
|
|
|
/**
|
|
* This class shows how to use the Java 2D API in a very
|
|
* simple manner.
|
|
*
|
|
* @author Frank Klawonn
|
|
* Last change 07.01.2005
|
|
* @see MyFinishWindow
|
|
*/
|
|
public class SimpleJava2DExample extends Frame
|
|
{
|
|
|
|
//Constructor
|
|
SimpleJava2DExample()
|
|
{
|
|
//Enables the closing of the window.
|
|
addWindowListener(new MyFinishWindow());
|
|
}
|
|
|
|
|
|
|
|
public void paint(Graphics g)
|
|
{
|
|
//In order to use Java 2D, it is necessary to cast the Graphics object
|
|
//into a Graphics2D object.
|
|
Graphics2D g2d = (Graphics2D) g;
|
|
//Now all methods for drawing in the window should be applied to the Graphics2D
|
|
//and not to the Graphics object any more.
|
|
//Write the text "Hello world" at the window coordinates (30,50)
|
|
g2d.drawString("Hello world!",30,50);
|
|
}
|
|
|
|
|
|
|
|
public static void main(String[] argv)
|
|
{
|
|
//Generate the window.
|
|
SimpleJava2DExample f = new SimpleJava2DExample();
|
|
//Define a title for the window.
|
|
f.setTitle("The first Java 2D program");
|
|
//Definition of the window size in pixels
|
|
f.setSize(250,80);
|
|
//Show the window on the screen.
|
|
f.setVisible(true);
|
|
}
|
|
}
|
|
|