package java01;import java.awt.*;import java.awt.geom.*;import javax.swing.*;public class java4{private static final int Width = 0;public void paintComponent(Graphics g){paintComponent(g);Graphics2D g2 = (Graphics2D) g;float width = getSize().width-10;float Height= getSize().height/3-10;g2.setPaint(Color.red);g2.draw(new Line2D.Float(5,5,5+Width,5+Height));g2.draw(new Line2D.Float(5,5+Height,5+Width,5));g2.setPaint(new Color(192,128,64));g2.fill(new Rectangle2D.Float(5,10+Height,Width,Height));g2.fill(new Shape(5,5,Color.blue,5+Width,5,Color.yellow));g2.fill(new Ellipse2D.Float(5,20+2*Height,Width,Height));}private Object getSize() { // TODO Auto-generated method stub return null;}public static void main(String [] argv, Object color){ JFrame f=new JFrame("色彩应用"); Component p=new Color(0); p.setBackground(color.white); f.getContentPane().add(p); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setSize(640,480); f.setVisible(true);} }显示有错误,不知如何修改,朋友们看下,不胜感激! |