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【第5章：面向对象基础】_对象数组

发布时间：2020-12-13 16:06:36编辑：雪饮阅读（）

 对象数组-动态赋值

class Person{
       private String name;
       public Person(String name){
              this.name=name;
       }
       public String getName(){
              return this.name;
       }
}
public class TestJava{
       public static void main(String args[]){
              Person per[] = new Person[3];
              System.out.println("======数组声明=====");
              for(Person x : per){
                     System.out.println(x);
              }
              System.out.println("========数组动态赋值=========");
              for(int x=0;x<per.length;x++){
                     per[x]=new Person("张"+x);
              }
              for(Person x : per){
                     System.out.println(x.getName());
              }
       }
}
D:\>javac TestJava.java
 
D:\>java TestJava
======数组声明=====
null
null
null
========数组动态赋值=========
张0
张1
张2
对象数组-静态赋值
class Person{
       private String name;
       public Person(String name){
              this.name=name;
       }
       public String getName(){
              return this.name;
       }
}
public class TestJava{
       public static void main(String args[]){
              Person per[] = {new Person("张三"),new Person("张四"),new Person("张五")};
              System.out.println("========数组静态赋值=========");
              for(Person x : per){
                     System.out.println(x.getName());
              }
       }
}