package com.tedu.demo;
import java.util.ArrayList;
import org.omg.CosNaming.NamingContextExtPackage.AddressHelper;
public class CallName {
/**
*
*/
public static void main(String[] args) {
ArrayList<Student> array = new ArrayList<Student>();
addStudents(array);
printStudent(array);
randomStudent(array);
}
//生成随机数,产生随机姓名
public static void randomStudent(ArrayList<Student> array){
int index = (int)(Math.random()*array.size());
Student s = array.get(index);
System.out.println(s.getName()+" "+s.getAge());
}
//遍历学生信息
public static void printStudent(ArrayList<Student> array){
for(int i=0;i<array.size();i++){
Student s = array.get(i);
System.out.println(s.getAge()+" "+s.getName());
}
}
//添加学生信息
public static void addStudents(ArrayList<Student> array){
Student s1 = new Student();
s1.setAge(201);
s1.setName("张三1");
Student s2 = new Student();
s2.setAge(202);
s2.setName("张三2");
Student s3 = new Student();
s3.setAge(203);
s3.setName("张三3");
Student s4 = new Student();
s4.setAge(204);
s4.setName("张三4");
Student s5 = new Student();
s5.setAge(205);
s5.setName("张三5");
array.add(s5);
array.add(s4);
array.add(s3);
array.add(s2);
array.add(s1);
}
}