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