package ch08;

import java.util.Scanner;

/** * Created by liwenj on 2017/7/20. */public class Person {    String[] names = new String[30];//把为null的元素添加内容    void addName(String name) {        for (int i = 0; i < names.length; i++) {            if (names[i] == null) {                names[i] = name;                break;            }        }        System.out.println("插入名字是" + name);    }//把不是null的元素（即是插入的元素）显示出来    void showName() {        for (int i = 0; i < names.length; i++) {            if (names[i] != null) {                System.out.println("得到的名字是" + names[i]);            }        }

    }//判断在数组某个区间内某个元素存不存在    boolean find(int begain, int end, String name) {        boolean f=false;        for(int j=0;j<end;j++){            if(names[j].equals(name)){                f=true;                break;            }        }        return f;    }//找到数组中某个区间内某个元素的位置，返回该元素索引    int find2(int begain, int end, String name) {       int i=-1;        for(int j=0;j<=end;j++){            if(names[j].equals(name)){                i=j;                break;            }        }        return i;    }}

class test {    public static void main(String[] args) {        boolean s;        int r;        Person person = new Person();        //从键盘输入五个元素       for(int i=0;i<5;i++){           System.out.println("请输入姓名：");           Scanner input=new Scanner(System.in);           String name=input.next();           person.addName(name);       }        person.showName();        s=person.find(0,3,"ccc");        System.out.println(s);        r=person.find2(0,3,"fff");        System.out.println(r);    }}