java_12_jar

生成jar包

myeclipse——>右键工程——>选择要导出的java——>export 导成jar包

Project1.jar

Project2.jar

Project3

package com.pc;

import com.pa.JavaA;
import com.pb.JavaB;

public class JavaC {
    public void hello(){
        System.out.println("my name is C ! ");
    }
    
    public static void main(String[] args) {
        JavaA a=new JavaA();
        a.hello();
        
        JavaB b=new JavaB();
        b.hello();
        
        JavaC c=new JavaC();
        c.hello();
    }
}

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C:\test>java -classpath ./firstJar.jar com.guoyasoft.actions.Test