PackageTest

这是我第一个Package 包相关类的测试例子，分为三部分：MainTest 、PackageSecond 和PackageSub

1。MainTest

路径：PackageTest\com\xzm\maintest

package com.xzm.maintest;

import com.xzm.pksub.*;

import com.xzm.pksecond.*;

public class Main

{

public static void main(String[] args)

{

PackageSecond second = new PackageSecond("I am in Main");

second.printvalue();

PackageSub sub = new PackageSub("I am in Main");

sub.printvalue();

System.exit(0);

}

}

2。PackageSecond

路径：PackageTest\com\xzm\pksecond

package com.xzm.pksecond;

public class PackageSecond

{

private String value;

public PackageSecond(String s)

{

value = s;

}

public void printvalue()

{

System.out.println("value of PackageSecond is " + value);

}

}

3。PackageSub

路径：PackageTest\com\xzm\pksub

package com.xzm.pksub;

import com.xzm.pksecond.*;

public class PackageSub

{

private String value;

public PackageSub(String s)

{

value = s;

}

public void printvalue()

{

PackageSecond second = new PackageSecond("I am in subpackage.");

second.printvalue();

System.out.println("value of PackageSub is " + value);

}

}