///創建一個學生類
///在學生類中，創建姓名，學號，性別等參數
///使用設置器來設置參數
///使用訪問器來獲取參數值
public class students
{
    private String name;
    private String code;
    private String sexy;
    private String birthday;
    private String address;
    public void setname(String name)
    {
        this.name=name;
    }
    public void setcode(String code)
    {
        this.code=code;
    }
    public void setsexy(String sexy)
    {
        this.sexy=sexy;
    }
    public void setbirthday(String birthday)
    {
        this.birthday=birthday;
    }
    public void setaddress(String address)
    {
        this.address=address;
    }
    public String getname()
    {
        return name;
    }
    public String getcode()
    {
        return code;
    }
    public String getsexy()
    {
        return sexy;
    }
    public String getbirthday()
    {
        return birthday;
    }
    public String getaddress()
    {
        return address;
    }
    public String tostring()
    {
        String infor="學生姓名："+name+"  "+"學號："+code+"  "+"性別："+sexy+"  "+"出生年月："+birthday+"  "+"家庭地址："+address;
        return infor;
    }
    public void setstudentcourse(String[] courses)
    {
        new course(courses);
    }
    private class course                                
   {
    private  String[] courses;
    private int coursenum;
    ///內部類的構造器
    public course(String[] course)                   
    {
        courses=course;
        coursenum=course.length;
        getinfo();
    }
   ///獲得課程數組中的課程
    private void get()                              
    {
        for(int i=0;i<coursenum;i++)
        {
            System.out.print("  "+courses[i]);
        }
    }
///按字符串形式輸出
    void getinfo()                                
    {
        System.out.println("學生姓名："+students.this.name+"學生學號："+students.this.code+"一共選擇了："+coursenum+"門科，分別是：");
        get();
    }
}
   public static void main(String[] args)
    {
        String[] courses={"語文","數學","英語","化學"};
        students st=new students();
        st.setname("王浩");
        st.setcode("200123");
        st.setsexy("男");
        st.setaddress("北京海淀區");
        System.out.println(st.tostring());
        st.setstudentcourse(courses);
    }

}