//请问怎样写main方法里的代码才能执行paint里的语句
import java.awt.*;
class allfonts
{
public static void paint(Graphics g)
{
g.setColor(Color.red);
g.drawLine(0,0,100,100);
g.drawRect(0,0,100,100);
}
public static void main(String args[])
{
??????
}
}
import java.awt.*;
class allfonts
{
public static void paint(Graphics g)
{
g.setColor(Color.red);
g.drawLine(0,0,100,100);
g.drawRect(0,0,100,100);
}
public static void main(String args[])
{
??????
}
}
applet的话你那个paint函数就行了
其他的JComponent的话override paintComponent方法
import javax.swing.*;
import java.awt.geom.*;public class AllFonts
{
public static void main(String [] args)
{
AllFontsFrame Frame = new AllFontsFrame();
Frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Frame.show();
}
}
class AllFontsFrame extends JFrame
{
public AllFontsFrame()
{
super("ALLFONTS");
setSize(DEFAULT_WIDTH,DEFAULT_HEIGHT);
AllFontsPanel Panel = new AllFontsPanel();
Container contentpane = getContentPane();
contentpane.add(Panel);
}
private static final int DEFAULT_WIDTH = 400;
private static final int DEFAULT_HEIGHT = 400;
}class AllFontsPanel extends JPanel
{
public void paintComponent(Graphics g)
{
super.paintComponent(g);
Graphics2D g2 = (Graphics2D)g;
//draw rectangle
Rectangle2D rect = new Rectangle2D.Double(100,100,100,100);
g2.draw(rect);
g2.setPaint(Color.RED);
g2.fill(rect);
}
}
Line2D 就可以了