import java.util.Scanner; public class Main { public static void main(String[] args) { Person p = new Person(); Scanner scanner = new Scanner(System.in); while (scanner.hasNextInt()) { int age = scanner.nextInt(); p.setAge(age); System.out.println(p.getAge()); } } } class Person { private int age; //write your code here...... //题目要求修改阶段判断年龄 public void setAge(int age){ if(age<0){ this.age=0; }else if(age>200){ this.age=200; }else{ this.age=age; } } public int getAge(){ return age; } }