6.10 对象数组

demo1 对象数组，静态初始化

class Person {
    private String name;
    private int age;
    public Person(String name,int age){
        this.name = name;
        this.age = age;
    }

    public String getInfo(){
        return "姓名:" + this.name + ",年龄:" + this.age;
    }
    // setter,getter 略
}

public class HelloWorld {
    public static void main(String[] args){
        Person per[] = new Person[3];// 对象数组,静态初始化
        per[0] = new Person("张三",10);
        per[1] = new Person("李四",20);
        per[2] = new Person("王武",30);

        for(int x = 0;x < per.length;x++){
            System.out.println(per[x].getInfo());
        }
    }
}

demo2 对象数组，动态初始化

class Person {
    private String name;
    private int age;
    public Person(String name,int age){
        this.name = name;
        this.age = age;
    }

    public String getInfo(){
        return "姓名:" + this.name + ",年龄:" + this.age;
    }
    // setter,getter 略
}


public class HelloWorld {
    public static void main(String[] args){
        Person per[] = new Person[] {
            new Person("张三",10),new Person("李四",20),new Person("王武",30)};// 对象数组,动态初始化

        for(int x = 0;x < per.length;x++){
            System.out.println(per[x].getInfo());
        }
    }
}