java 对象数组定义

下面代码实现了定义一个数组对象

 public class Student {
 
     private String username;
     private int num;
 
     public Student(String username, int num) {
         this.username = username;
         this.num = num;
     }
 
     public static void main(String[] args) {
         Student s[] = new Student[10];
         for (int i = 0; i < s.length; i++) {
             s[i] = new Student(i + "", i);
             System.out.println(s[i]);
         }
 
     }
 
     public String getUsername() {
         return username;
     }
 
     public void setUsername(String username) {
         this.username = username;
     }
 
     public int getNum() {
         return num;
     }
 
     public void setNum(int num) {
         this.num = num;
     }
 
     @Override
     public String toString() {
         return this.num + " " + this.username;
     }
 
 }

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