java - 如何在这个程序中添加扫描仪？如果用户想输入值

Question

public class ReverseString {

   public static void main(String[] args) {
        String reverse = "";
        String obj = new String("BOOKS");
        for ( int i = obj.length() - 1 ; i >= 0 ; i-- )
            reverse = reverse + obj.charAt(i);
        System.err.println("Orignal string is: "+obj);
        System.out.println("Reverse string is: "+reverse);
    }
}

标签： javastringsplitreversecharat

Answer 1

导入扫描仪，然后创建其对象并使用它来获取用户输入。

import java.util.Scanner;
//Statements of your code
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
String obj = sc.nextLine();
//Statements of your code
}