用java写Student类的功能

1）编写一个Java程序片断，以定义一个表示学生的类Student。这个类的属性有“学号”、“班号”、“姓名”、“性别”、“年龄”，方法有“获得学号”、“获得班号”、“获得性别”、“获得姓名”、“获得年龄”。
2）为类Student增加一个方法public String toString( )，该方法把Student类的对象的所有属性信息组合成一个字符串以便输出显示。编写一个Java Application程序，创建Student类的对象，并验证新增加的功能。

package xin;import java.util.Scanner;public class Student {int number;String classnumber;int age;String name;String sex;Student(int x,String y,int z,String p){number = x;classnumber = y;age = z;name = p;}int getNumber() {return number;  //返回学号}String getSClassnumber() {return classnumber;  //返回班号}int getAge() {return age;     //返回年龄}String getName() {return name;    //返回姓名}String getSex() {return sex;   //返回性别}public1ca81String toString() {return "学号:"+number+" 班号:"+classnumber+" 姓名:"+name+" 性别:"+sex+" 年龄:"+age;}public static void main(String args[]) {boolean boo,a;int number1,age1;String classnumber1,st;String name1,sex1;Student stu = new Student(1,"s",1,"xaio");Scanner reader = new Scanner(System.in);System.out.println("请输入学号、班号、姓名、性别、年龄:");stu.number = reader.nextInt();stu.classnumber = reader.next();stu.name = reader.next();stu.sex = reader.next();stu.age = reader.nextInt();st = stu.toString();System.out.println(st);System.out.println("是否修改该学生信息？");System.out.println("如果修改则输入true,反之false");a = reader.nextBoolean();if(a) {System.out.println("请输入学号、班号、姓名、性别、年龄:");number1 = reader.nextInt();classnumber1 = reader.next();name1 = reader.next();sex1 = reader.next();age1 = reader.nextInt();System.out.println("学号:"+number1+" 班号:"+classnumber1+" 姓名:"+name1+" 性别:"+sex1+" 年龄:"+age1);}else{System.out.println("继续执行下一步");}System.out.println("输入true继续，false退出");boo = reader.nextBoolean();System.out.println("*********************");if(boo) {main(args);   //函数调用}elseSystem.out.println("程序无法执行!!!!");}}