类的使用

//定义类

package com.jredu.ch.Package001;
public class LvYou {
 public String name;
 public int age;
 public void menpiao(){
  if (age>18) {
   System.out.println(name+"的年龄为"+age+",门票价格为20");
  }else {
   System.out.println(name+"的年龄为"+age+",门票免费");
  }
 }
 public LvYou(String name,int age){
  this.name = name;
  this.age = age;
 }
}

//函数体

package com.jredu.ch05;
import java.util.Scanner;
import com.jredu.ch.Package001.LvYou;
public class LiuYiFan20160802_LvYou {
 public static void main(String[] args) {
  String name;
  int age;
  Scanner input = new Scanner(System.in);
  do {
   System.out.println("请输入你的姓名");
   name = input.next();
   if (name.equals("n")) {
    System.out.println("退出程序");
    break;
   }else {
    System.out.println("请输入你的年龄");
    age = input.nextInt();
    LvYou peaple = new LvYou(name,age);
    peaple.menpiao();
   }
   
  } while (name!="n");
  input.close();
 }
}

//输入年龄后判断门票的价格