import javax.swing.JApplet;
import java.awt.*;public class firstpaint extends JApplet
{
public void paint (Graphics page)
{
page.drawLine(44,50,60,90);
page.drawRect(55,55,99,99);
page.drawRect(50,50,60,90);
page.drawOval(100,100,50,50);
page.drawOval(100,100,50,88);
page.drawString("you are right!!",100,100);
}
}
运行生成.CLASS文件后
输入java firstpaint
出现下面这句话:
exception in thread "main" java.lang.nosuchmethoderror: main请教!!
请教!!
import java.awt.*;public class firstpaint extends JApplet
{
public void paint (Graphics page)
{
page.drawLine(44,50,60,90);
page.drawRect(55,55,99,99);
page.drawRect(50,50,60,90);
page.drawOval(100,100,50,50);
page.drawOval(100,100,50,88);
page.drawString("you are right!!",100,100);
}
}
运行生成.CLASS文件后
输入java firstpaint
出现下面这句话:
exception in thread "main" java.lang.nosuchmethoderror: main请教!!
请教!!
import java.awt.*;public class firstpaint extends JApplet
{
public void paint (Graphics page)
{
page.drawLine(44,50,60,90);
page.drawRect(55,55,99,99);
page.drawRect(50,50,60,90);
page.drawOval(100,100,50,50);
page.drawOval(100,100,50,88);
page.drawString("you are right!!",100,100);
}
public static void main(String[] args)
{
firstpaint fp = new firstpaint();
Graphics page = new Graphics();
fp.paint(page);
}
}
import java.awt.*;
import javax.swing.*;
public class firstpaint extends JApplet
{
public void paint (Graphics page)
{
page.drawLine(44,50,60,90);
page.drawRect(55,55,99,99);
page.drawRect(50,50,60,90);
page.drawOval(100,100,50,50);
page.drawOval(100,100,50,88);
page.drawString("you are right!!",100,100);
}
public static void main(String[] args)
{
firstpaint fp = new firstpaint();
JFrame f = new JFrame();
f.getContentPane().add(fp,"Center");
fp.init();
f.setSize(600,600);
f.setVisible(true);
f.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
}试试 ,我编译运行没问题