JAVA简答题与编程

class Student{
int id = 0; //学号
String name = new String();//姓名
int age =0;
String major= new String();//专业
int grade =0;//年级

public Student(int id,String name,int age, String major,int grade){
this.id=id;
this.name=name;
this.age=age;
this.major=major;
this.grade=grade;
}

public void display(){
String dis = new String();
dis = "姓名："+name+"\n学号："+id+"……" //自己补全
System.out.println(dis);
}
}

class Test{
public static void main(String[] args){ //程序入口
Student student = new Student(10002,"dodo",12,"computer",5);
student.display();
}
}

public class Student {
private String 学号;
private String 姓名;
private String 年龄;
private String 专业;
private String 年级;

public Student(String 学号, String 姓名, String 年龄, String 专业, String 年级) {
this.学号 = 学号;
this.姓名 = 姓名;
this.年龄 = 年龄;
this.专业 = 专业;
this.年级 = 年级;
}
public void display() {
System.out.println("学号:"+学号+" 姓名:"+姓名+" 年龄:"+年龄+" 专业:"+专业+" 年级:"+年级);
}
public static void main(String[] args) {
Student student = new Student("学号", "姓名", "年龄", "专业", "年级");
student.display();
}
}

package test;

public class Student {

private String name;

private int age;

private String grade;

public Student(String name,int age,String grade){

this.name=name;
this.age=age;
this.grade=grade;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public int getAge() {
return age;
}

public void setAge(int age) {
this.age = age;
}

public String getGrade() {
return grade;
}

public void setGrade(String grade) {
this.grade = grade;
}

public String display(){

return "name="+this.name+",age="+this.age+",grade="+this.grade;
}

public static void main(String[] args) {

Student stu=new Student("tom", 12, "2年级");

String result=stu.display();

System.out.println(result);
}

}

抽点时间看看书吧,这问题真心没必要问

package test;

public class Student {

private String name;

private int age;

private String grade;

public Student(String name,int age,String grade){

this.name=name;
this.age=age;
this.grade=grade;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public int getAge() {
return age;
}

public void setAge(int age) {
this.age = age;
}

public String getGrade() {
return grade;
}

public void setGrade(String grade) {
this.grade = grade;
}

public String display(){

return "name="+this.name+",age="+this.age+",grade="+this.grade;
}

public static void main(String[] args) {

Student stu=new Student("tom", 12, "2年级");

String result=stu.display();

System.out.println(result);
}

}