【提问】为什么APPLET程序运行的时候会出现……

Question

出现一个对话框。说the system can't find a suitable main method
然后只能选择 select main method 和continue。
求大家指教

Answer 1

general output:
--------------------Configuration: shiyan52 - JDK version 1.6.0_20 <Default> - <Default>--------------------
Usage: java [-options] class [args...]
           (to execute a class)
   or  java [-options] -jar jarfile [args...]
           (to execute a jar file)where options include:
    -client   to select the "client" VM
    -server   to select the "server" VM
    -hotspot      is a synonym for the "client" VM  [deprecated]
                  The default VM is client.
                  
    -cp <class search path of directories and zip/jar files>
    -classpath <class search path of directories and zip/jar files>
                  A ; separated list of directories, JAR archives,
                  and ZIP archives to search for class files.
    -D<name>=<value>
                  set a system property
    -verbose[:class|gc|jni]
                  enable verbose output
    -version      print product version and exit
    -version:<value>
                  require the specified version to run
    -showversion  print product version and continue
    -jre-restrict-search | -jre-no-restrict-search
                  include/exclude user private JREs in the version search
    -? -help      print this help message
    -X            print help on non-standard options
    -ea[:<packagename>...|:<classname>]
    -enableassertions[:<packagename>...|:<classname>]
                  enable assertions
    -da[:<packagename>...|:<classname>]
    -disableassertions[:<packagename>...|:<classname>]
                  disable assertions
    -esa | -enablesystemassertions
                  enable system assertions
    -dsa | -disablesystemassertions
                  disable system assertions
    -agentlib:<libname>[=<options>]
                  load native agent library <libname>, e.g. -agentlib:hprof
                    see also, -agentlib:jdwp=help and -agentlib:hprof=help
    -agentpath:<pathname>[=<options>]
                  load native agent library by full pathname
    -javaagent:<jarpath>[=<options>]
                  load Java programming language agent, see java.lang.instrument
    -splash:<imagepath>
                  show splash screen with specified imageProcess completed.

Answer 2

applet怎么会找main方法啊？你执行模式错了吧？

Answer 3

import java.awt.*;
import java.applet.*;
import java.applet.Applet;public class shiyan52 extends Applet implements Runnable{
Color BallColor = new Color(0,0,255);
Thread thread1;
int i=0;
public void init()
 {   }
public void start(){
thread1 = new Thread(this,"Ball");
thread1.start();
}
public void run()
{
String currentRunning;
while(true){
try{
thread1.sleep(100);
}catch(InterruptedException e){}
currentRunning=thread1.currentThread().getName();
if(currentRunning.equals("Ball"))
{  
repaint();
}
}
}
public void paint(Graphics g) {
g.setColor(BallColor);
g.fillOval(100,30+i,30,30);
i=i+5;

}
}

Answer 4

我也感觉很奇怪啊，可是我再三确认是建立了APPLET的工程的，里面htm文件都有