//dialog.java
//<applet code="dialog.class" width="150" height="150">
//</applet>import javax.swing.JOptionPane;
public class dialog{
public static void main(String []args)
{
String output="sadfasdfsdf"+Byte.MIN_VALUE;
JOptionPane.showMessageDialog(null,output,"data constants",JOptionPane.INFORMATION_MESSAGE);
System.exit(0);
}
}
//<applet code="dialog.class" width="150" height="150">
//</applet>import javax.swing.JOptionPane;
public class dialog{
public static void main(String []args)
{
String output="sadfasdfsdf"+Byte.MIN_VALUE;
JOptionPane.showMessageDialog(null,output,"data constants",JOptionPane.INFORMATION_MESSAGE);
System.exit(0);
}
}
难道要嵌套在HTML中运行吗?
//dialog.java
//<applet code="dialog.class" width="150" height="150">
//</applet>
import java.applet.Applet; //引入包
import javax.swing.JOptionPane;
public class dialog{
public static void main(String []args)
{
String output="sadfasdfsdf"+Byte.MIN_VALUE;
JOptionPane.showMessageDialog(null,output,"data constants",JOptionPane.INFORMATION_MESSAGE);
System.exit(0);
}
}
//showstring.java
//<applet code="showstring.class" width="150" height="150">
//</applet>
import java.applet.Applet; //引入包
import javax.swing.JOptionPane;
public class showstring extends Applet{
public static void main(String []args)
{
System.out.println("sdf");
System.exit(0);
}
}
显示的内容是被划出来的import java.awt.*;
import java.applet.Applet; //引入包
public class showstring extends Applet{
public void paint(Graphics g){
g.drawString("sdf",60,20);
}
}test.html
<applet code="showstring.class" width="150" height="150">
</applet>
可是我在命令提示符下,输入:
java showstring.java吗?
运行了,提示如下:
Exception in thread "main" java.lang.NoClassDefFoundError:showstring/java
而另外就是Applet小程序,需要圈套在网页里执行,当然也可以在DOS下测试
用appletviewer showstring
Exception in thread "main" java.lang.NoClassDefFoundError:showstring/java