package com.mczhu.study.main;

public class Test {

	public static void main(String args[]) {
		System.out.println("this is a test demo !");
	}

}

package com.mczhu.study.main;

public class Test {

	private String name = "";

	public static void main(String args[]) {
		System.out.println("this is a test demo !");
	}

}

Update Test.java class.