java面向对象实例

前段时间还很迷茫，经过反复学习实践，基本上理解是什么意思，做了个小练习，贴代码：

public class Testyg {

private int ID;

private String name;

private double xinshui;

private String bumenString;

public Testyg(int ID , String name , double xinshui , String bumenString){

this.ID=ID;

this.name = name;

this.xinshui = xinshui;

this.bumenString = bumenString;

}

public Testyg(int ID, String name , double xinshui ){

this(01, "无名氏", 0.0, "未定");

}

public Testyg(int ID , String name){

this(01, "无名氏", 0.0);

}

public Testyg(){

}

public String shuch(){

return "员工号："+this.ID+"名字 :"+this.name+"薪水"+this.xinshui+"部门："+this.bumenString;

}

public static void main(String[] args){

Testyg xmTestyg = new Testyg(02,"小名",900.0,"研发部");

System.out.println(xmTestyg.shuch());

}

}

这里涉及到的知识点：this的用法，构造法重载 ，普通方法。

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