2017.12.6T19_B2_3.2 zuoye

package com.whxiong.work03;

import java.util.Scanner;

public class Student {
 String name;
 int age;
 Scanner input = new Scanner(System.in);

 public void setAge(String name, int age) {
  System.out.println("请输入您的年龄：");
  age = input.nextInt();
  if (age < 16) {
   do {
    System.out.println("您输入的年龄不正确,请重新输入！");
    System.out.println("请输入您的年龄：");
    age = input.nextInt();
   } while (age < 16);
  }
  this.age = age;
 }

 public void showStudent() {
  System.out.println("大家好！我叫:" + name + ",今年" + this.age + "岁！");
  System.out.println("欢迎您" + name + "学员！");
 }

}****************************************************************

package com.whxiong.work03;

import java.util.Scanner;

public class Student2 {
 private String name;
 private int age;
 private String sex;
 private String major;
 Scanner input = new Scanner(System.in);
 //带参构造
 public Student2(String name,int age) {
  this.name = name;
  this.age = age;
  this.sex = "男";
  this.major = "Java";
 }

 public void showSt1() {
  System.out.println("大家好,我叫" + this.name + ",我是" + this.sex + "生！");
  System.out.println("\t今年" + this.age + "岁,我的专业是" + this.major);
 }
 //有参构造
 public Student2(String name, int age, String sex, String major) {
  this.name = name;
  this.age = age;
  this.sex = sex;
  this.major = major;
 }

 public void showSt2() {
  System.out.println("大家好,我叫" + this.name + ",我是" + this.sex + "生！");
  System.out.println("\t今年" + this.age + "岁,我的专业是" + this.major);
 }

}**********************************************************************************

package com.whxiong.work03;

import java.util.Scanner;

public class Work03 {

 /**
  * @param args
  */
 public static void main(String[] args) {
  Scanner input = new Scanner(System.in);

  System.out.println("第四题");
  System.out.println("******************************");
  Student st = new Student();
  System.out.println("请输入您的姓名：");
  st.name = input.next();
  st.setAge(st.name,st.age);
  st.showStudent();

  System.out.println("\n");
  System.out.println("第五题");
  System.out.println("******************************");
  
  
  System.out.println("请输入您的姓名：");
  String name1 = input.next();
  System.out.println("请输入您的年龄：");
  int age = input.nextInt();
  System.out.println("请输入您的性别：");
  String sex = input.next();
  System.out.println("请输入您的专业：");
  String major = input.next();
  Student2 st2 = new Student2(name1,age);
  st2.showSt1();
  Student2 st3 = new Student2(name1,age,sex,major);
  st3.showSt2();

 }
}