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 java1; public class People { public String name; public int age; public String sex; public String height; People(String name, int age, String sex, String height) { this.name = name; this.age = age; this.sex = sex; this.height = height; } public String shuohua(String hua) { System.out.println("说:" + hua); return hua; } public double jia(double a, double b) { System.out.println(a + "+" + b + "=" + (a + b)); return a + b; } public String changename(String name) { this.name=name; System.out.println("修改后的名字为"+name); return name; } People ren=new People("张三",18,"男",1.80); System.out.println(ren.name+ren.height+ren.sex+ren.age); ren.shuohua("你好!"); ren.jia(23,45); ren.changename("李四");
文章来自:http://www.cnblogs.com/zs6666/p/5887006.html