Lesson_6 作业_1 ---- 封装学生类 

  1 /***********************************************************
  2 *                       Lesson_6 作业_1
  3 *                         2013-01-16
  4 *                        by CocoonFan
  5 *
  6 ************************************************************
  7 *************************作业描述***************************
  8 *
  9 *       定义了一个学生的类Student,包括成员变量“学号”、“班号”、
 10 * “姓名”、“性别”、“年龄”，成员方法：“获得学号”、“获得班号”、
 11 * “获得性别”、“获得姓名”、“获得年龄”。请为Student类定义构造
 12 * 函数初始化所有的成员变量。增加一个方法“修改年龄”。
 13 *       boolean  setStudentAge(int  newAge)。新年龄如果在1至
 14 * 100岁的话，将原来年龄修改为新年龄，并返回修改成功true的信息。
 15 * 如果超出范围，显示“非法学生年龄”，并返回false的信息.
 16 *
 17 ************************************************************/
 18 
 19 public class TestStudent{
 20     public static void main(String []args){
 21 /*
 22         for(int i = 0; i < 255; i++){
 23             System.out.print((char)i + "-->" + i+ " ");
 24         }*/
 25         
 26         Student cocoonFan = new Student("CocoonFan","男","113224","ITE-1103",20);
 27         System.out.println("这个人是正常的······");
 28         System.out.println("姓名：" + cocoonFan.getStudentName());
 29         System.out.println("性别：" + cocoonFan.getStudentSex());
 30         System.out.println("学号：" + cocoonFan.getStudentNumber());
 31         System.out.println("班号：" + cocoonFan.getClassNumber());
 32         System.out.println("年龄：" + cocoonFan.getStudentAge());
 33         System.out.println();
 34 
 35         Student wan = new Student();
 36         wan.setStudentSex("人妖");
 37         wan.setStudentAge(120);
 38         System.out.println("姓名：" + wan.getStudentName());
 39         //System.out.println("性别：" + wan.getStudentSex());
 40         System.out.println("学号：" + wan.getStudentNumber());
 41         System.out.println("班号：" + wan.getClassNumber());
 42         System.out.println("年龄：" + wan.getStudentAge());
 43 
 44     }
 45 }
 46 
 47 class Student{
 48     private String studentName;
 49     private String studentSex;
 50     private String studentNumber;
 51     private String classNumber;
 52     private int studentAge;
 53 
 54     //构造方法
 55     public Student(){}
 56     public Student(String studentName, String studentSex, 
 57         String studentNumber, String classNumber, int studentAge){
 58         this.studentName = studentName;
 59         this.studentSex = studentSex;
 60         this.studentNumber = studentNumber;
 61         this.classNumber = classNumber;
 62         this.studentAge = studentAge;
 63     }
 64 
 65     //get和set姓名
 66     public void setStudentName(String studentName){
 67         this.studentName = studentName;
 68     }
 69     public String getStudentName(){
 70         return studentName;
 71     }
 72 
 73     //get和set性别
 74     public void setStudentSex(String studentSex){
 75         if(!studentSex.equals("男") && !studentSex.equals("女")){
 76             System.out.println("非法设置性别，性别只能为 男或女。");
 77         }else{
 78             this.studentSex = studentSex;
 79         }
 80     }
 81     public String getStudentSex(){
 82         if(studentSex.equals("男") || studentSex.equals("女")){
 83             return studentSex;
 84         }else{
 85             return "性别未知\n";
 86         }
 87     }
 88 
 89     //get和set学号
 90     public void setStudentNumber(String studentNumber){
 91         this.studentNumber = studentNumber;
 92     }
 93     public String getStudentNumber(){
 94         return studentNumber;
 95     }
 96 
 97     //get和set班级号
 98     public void setClassNumber(String classNumber){
 99         this.classNumber = classNumber;
100     }
101     public String getClassNumber(){
102         return classNumber;
103     }
104 
105     //set和get年龄
106     public boolean setStudentAge(int newAge){
107         if(newAge > 0 && newAge < 100){
108             this.studentAge = newAge;
109             return true;
110         }else{
111             System.out.println("非法学生年龄");
112             return false;
113         }
114     }
115     public int getStudentAge(){
116         if(studentAge == 0){
117             System.out.println("学生年龄尚未设置!");
118             return -1;
119         }else{
120             return studentAge;
121         }
122     }
123 
124 }

运行结果

posted @ 2013-01-17 00:50  Cocoon  阅读(470)  评论(0)  编辑  收藏  举报