要注意解决学号不存在和学号重复问题
学生类
package com.itheima.ArrayList;
public class Student {
private String sid;
private String age;
private String name;
private String address;
public Student(){
}
public Student(String sid,String name,String age,String address){
this.sid=sid;
this.name=name;
this.age=age;
this.address=address;
}
public String getSid() {
return sid;
}
public void setSid(String sid) {
this.sid = sid;
}
public String getAge() {
return age;
}
public void setAge(String age) {
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
}
主函数及相关方法:
package com.itheima.ArrayList;
import java.util.ArrayList;
import java.util.Scanner;
public class StudentManager {
public static void main(String[] args) {
ArrayList<Student> array = new ArrayList<Student>();
while(