第十二节：类的定义

Java高级编程

掌握

类的定义;
对象的定义;
类的构造方法;
方法的重载

实现步骤:

新建Worker类
为Worker类添加四个属性
为Worker类添加带参的构造方法，不带参的构造方法不再自动创建
创建不带参数的构造方法

为Worker类添加getTax()方法
为Worker类添加getSalary()方法
在主方法中实例化对象测试并输出姓名，工资和所得税

package hh;

public class Worker {
private  String ID;
private String name;
private double basic;
private double bonus;

public Worker() {
name="jack";
basic=1900;
bonus=100;
ID="07160615";
}

public Worker(String ID, String name, double basic, double bonus) {
super();
this.ID = ID;
this.name = name;
this.basic = basic;
this.bonus = bonus;
}

public String getID() {
return ID;
}

public void setID(String iD) {
ID = iD;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public double getBasic() {
return basic;
}

public void setBasic(double basic) {
this.basic = basic;
}

public double getBonus() {
return bonus;
}

public void setBonus(double bonus) {
this.bonus = bonus;
}

public double getTax(){
if (this.basic+this.bonus<=1600){
return 0;
    }else{
return (this.basic+this.bonus-1600)*0.15;
}
}
    public double getSalary(){
    if (this.basic+this.bonus<=1600){
return this.basic+this.bonus;
    }else{
    return this.basic+this.bonus-this.getTax();
    }
    }
    void print(){
    System.out.println("工人姓名:"+this.name);
    System.out.println("所得税："+this.getTax());
    System.out.println("实际工资："+this.getSalary());
   }
public static void main(String[] args) {
Worker jack=new Worker("07160615", "jack", 1400, 100);
jack.print();
}

}

验结果及分析(运行结果截图)