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  • (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 a;
    
    public class People {
        private String name,sex;
        private int age;
        private double height;
    
        public String getName() {
            return name;
        }
        public void setName(String name) {
            this.name = name;
        }
        public String getSex() {
            return sex;
        }
        public void setSex(String sex) {
            this.sex = sex;
        }
        public int getAge() {
            return age;
        }
        public void setAge(int age) {
            this.age = age;
        }
        public double getHeight() {
            return height;
        }
        public void setHeight(double height) {
            this.height = height;
        }
    
        public void shuohua(String s)
        {
            System.out.println(s);
        }
        public int add(int a,int b)
        {
            int c=a+b;
            System.out.println(a+"+"+b+"="+c);
            return     c;
        }
        public String changeName(String i)
        {
            
            name=i;
            return name;
            
        }
        public static void main(String[] args) {
            People people1=new People();
            people1.setName("张三");
            people1.setSex("男");
            people1.setAge(18);
            people1.setHeight(1.80);
            System.out.println("姓名: "+people1.getName());
            System.out.println("性别: "+people1.getSex());
            System.out.println("年龄: "+people1.getAge());
            System.out.println("身高: "+people1.getHeight());
            people1.shuohua("你好");
            people1.add(23, 45);
            people1.changeName("李四");
            System.out.println("姓名: "+people1.getName());
            System.out.println("性别: "+people1.getSex());
            System.out.println("年龄: "+people1.getAge());
            System.out.println("身高: "+people1.getHeight());
            
        }
    }

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  • 原文地址:https://www.cnblogs.com/wenwen123/p/5513413.html
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