java 、类和对象基础题2 people

按要求编写Java应用程序。

（1）创建一个叫做People的类：

属性：姓名、年龄、性别、身高

行为：说话、计算加法、改名

编写能为所有属性赋值的构造方法；

（2）创建主类：

创建一个对象：名叫“张三”，性别“男”，年龄18岁，身高1.80；

让该对象调用成员方法：

说出“你好！”

计算23+45的值

将名字改为“李四”

package lianxiti;

public class People {
    private String name;
    private int age;
    private String xingbie;
    private double shengao;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public String getXingbie() {
        return xingbie;
    }
    public void setXingbie(String xingbie) {
        this.xingbie = xingbie;
    }
    public double getShengao() {
        return shengao;
    }
    public void setShengao(double shengao) {
        this.shengao = shengao;
    }
    People(String name,int age,String xingbie,double shengao)
    {
        this.name=name;
        this.age=age;
        this.xingbie=xingbie;
        this.shengao=shengao;
        System.out.println("姓名是："+this.name+" "+"年龄是："+this.age+" "+"性别是："+
        this.xingbie+" "+"身高是："+this.shengao+"厘米");
    }
    
    
    void ShuoHua()
    {
        System.out.println("你好");
    }
     int JiSuanJiaFa(int a,int b)
     {
        
         return a+b;
     }
     void GaiMing()
     {
         
     }

    

}

package lianxiti;

public class p {

    public static void main(String[] args) {
        People p1 = new People("张三",18,"男",180.0);
        
        p1.ShuoHua();
        p1.JiSuanJiaFa(23, 45);
        System.out.println("23+45="+p1.JiSuanJiaFa(23, 45));
        p1.setName("李四");
        System.out.println(p1.getName());
        p1.setXingbie("女");
        System.out.println(p1.getName()+"的性别是"+p1.getXingbie());

    }

}