Lesson_6 作业_1 封装学生类

/***********************************************************
*                       Lesson_6 作业_1
*                         2013-01-16
*                        by CocoonFan
*
************************************************************
*************************作业描述***************************
*
*       定义了一个学生的类Student,包括成员变量“学号”、“班号”、
* “姓名”、“性别”、“年龄”，成员方法：“获得学号”、“获得班号”、
* “获得性别”、“获得姓名”、“获得年龄”。请为Student类定义构造
* 函数初始化所有的成员变量。增加一个方法“修改年龄”。
*       boolean  setStudentAge(int  newAge)。新年龄如果在1至
* 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。
* 如果超出范围，显示“非法学生年龄”，并返回false的信息.
*
************************************************************/

public class TestStudent{
    public static void main(String []args){
/*
        for(int i = 0; i < 255; i++){
            System.out.print((char)i + "-->" + i+ " ");
        }*/
        
        Student cocoonFan = new Student("CocoonFan","男","113224","ITE-1103",20);
        System.out.println("这个人是正常的······");
        System.out.println("姓名：" + cocoonFan.getStudentName());
        System.out.println("性别：" + cocoonFan.getStudentSex());
        System.out.println("学号：" + cocoonFan.getStudentNumber());
        System.out.println("班号：" + cocoonFan.getClassNumber());
        System.out.println("年龄：" + cocoonFan.getStudentAge());
        System.out.println();

        Student wan = new Student();
        wan.setStudentSex("人妖");
        wan.setStudentAge(120);
        System.out.println("姓名：" + wan.getStudentName());
        //System.out.println("性别：" + wan.getStudentSex());
        System.out.println("学号：" + wan.getStudentNumber());
        System.out.println("班号：" + wan.getClassNumber());
        System.out.println("年龄：" + wan.getStudentAge());

    }
}

class Student{
    private String studentName;
    private String studentSex;
    private String studentNumber;
    private String classNumber;
    private int studentAge;

    //构造方法
    public Student(){}
    public Student(String studentName, String studentSex, 
        String studentNumber, String classNumber, int studentAge){
        this.studentName = studentName;
        this.studentSex = studentSex;
        this.studentNumber = studentNumber;
        this.classNumber = classNumber;
        this.studentAge = studentAge;
    }

    //get和set姓名
    public void setStudentName(String studentName){
        this.studentName = studentName;
    }
    public String getStudentName(){
        return studentName;
    }

    //get和set性别
    public void setStudentSex(String studentSex){
        if(!studentSex.equals("男") && !studentSex.equals("女")){
            System.out.println("非法设置性别，性别只能为 男或女。");
        }else{
            this.studentSex = studentSex;
        }
    }
    public String getStudentSex(){
        if(studentSex.equals("男") || studentSex.equals("女")){
            return studentSex;
        }else{
            return "性别未知\n";
        }
    }

    //get和set学号
    public void setStudentNumber(String studentNumber){
        this.studentNumber = studentNumber;
    }
    public String getStudentNumber(){
        return studentNumber;
    }

    //get和set班级号
    public void setClassNumber(String classNumber){
        this.classNumber = classNumber;
    }
    public String getClassNumber(){
        return classNumber;
    }

    //set和get年龄
    public boolean setStudentAge(int newAge){
        if(newAge > 0 && newAge < 100){
            this.studentAge = newAge;
            return true;
        }else{
            System.out.println("非法学生年龄");
            return false;
        }
    }
    public int getStudentAge(){
        if(studentAge == 0){
            System.out.println("学生年龄尚未设置!");
            return -1;
        }else{
            return studentAge;
        }
    }

}

运行结果