java:对象数组Person[ ]的增删改查

package AAA;


public class Person {
    String name;
    int age;


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

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public void info(){
        System.out.println("name="+name+",age="+age);
    }
}

package AAA;


import java.util.Scanner;


public class PersonTest {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        Person[] persons = new Person[6];
        persons[0] = new Person("张三", 18);
        persons[1] = new Person("李四", 18);
        persons[2] = new Person("王五", 22);
        persons[3] = new Person("赵六", 18);
        persons[4] = new Person("孙七", 18);

        for (int i = 0; i < persons.length-1 ; i++) {

//            System.out.println("第"+(i+1)+"个人的姓名为——>"+persons[i].name+",第"+(i+1)+"个人的年龄为-->"+persons[i].age);
                persons[i].info();
        }

        //查找
        int index = -1;
        System.out.println("输入查找人的名字");
        String content = scanner.next();
        for (int i = 0; i < persons.length-1; i++) {
            if(persons[i].name.equals(content)){
                index = i;
            }
        }
        System.out.println("这个人的名字索引位置为"+index);

        //插入
        System.out.println("请输入插入的位置");
        int n = scanner.nextInt();
        for (int i = persons.length-1; i >= n-1 ; i--) {
            if(persons[i]!=null){
                persons[i+1] = persons[i];
            }

        }
        persons[n-1] = new Person("李八",30);
        System.out.println("插入后的值"+"姓名为"+persons[n-1].name+",年龄为"+persons[n-1].age);
        for(Person people:persons){
           people.info();
        }

        System.out.println("请输入删除的名字");
        String delname = scanner.next();
        int index1 = -1;
        for (int i = 0; i < persons.length; i++) {
            if(persons[i].name.equals(delname)){
                index1 = i;
            }
        }
        System.out.println(index1);

        for (int i = index1; i < persons.length-1; i++) {
            persons[i]=persons[i+1];
        }
        for (int i = 0; i < persons.length-1; i++) {
            persons[i].info();
        }


    }
}