CodePudding user response:

 
Package leetcode; 

/* * 
* @ the ClassName: Studeng 
* @ Description: TODO 
* @ author: MZB 
* @ date: on May 25, 2020 morning 10:12:52 
*/
Public class Student {
Private Integer stuNO; 
private Integer age; 

Public Integer getStuNO () {
Return stuNO; 
} 
Public void setStuNO (Integer stuNO) {
Enclosing stuNO=stuNO; 
} 
Public Integer getAge () {
Return the age; 
} 
Public void setAge (Integer age) {
this.age=age; 
} 
@ Override 
Public String toString () {
Return "Student [stuNO=" + stuNO + ", the age="+ age +"] ". 
} 
} 

Package leetcode; 

Import the Java. Util. Random; 

/* * 
* @ the ClassName: Test 
* @ Description: TODO 
* @ author: MZB 
* @ date: on May 25, 2020 morning 10:14:00 
*/
Public class Test {
Public static void main (String [] args) {
Student stu. 
The Random rand=new Random (); 
for(int i=1; i<=20; I++) {
Stu=new Student (); 
Stu. SetStuNO (20190100 + I); 
Stu. SetAge (rand. NextInt (2) + 18); 
System. The out. Println (" first "+ I +" classmate student id is "+ stu. GetStuNO () +", the age is "+ stu. GetAge ()); 
} 
} 
}