import java.util.Scanner;

/*数组查表法
* use the index of arrays to get the content of arrays.
* */
public class Arrays
{


    public static void main(String[] args) {
        //定义一个数组
        String[] arr = {"","one","two","three","four","five","six","seven"};
        //创建键盘录入对象
        Scanner sc = new Scanner(System.in);
        System.out.println("please set a index:");
       int num = sc.nextInt();
       if(num<1||num>=8) {
           System.out.println("the index which you set is wrong");

       }   else {
           System.out.println(arr[num]);
       }
    }

}

import java.util.Scanner;

/*数组查表法
* use the index of arrays to get the content of arrays.
* */
public class Arrays
{


    public static void main(String[] args) {
        //定义一个数组
        String[] arr = {"","one","two","three","four","five","six","seven"};
        //创建键盘录入对象
        Scanner sc = new Scanner(System.in);
        System.out.println("please set a index:");
       int num = sc.nextInt();
       if(num<1||num>=8) {
           System.out.println("the index which you set is wrong");

       }   else {
           System.out.println(arr[num]);
       }
    }

}