请问 findChar = input.next().charAt(0);是什么意思呢？

Question

import java.util.Scanner;

 

public class Ex3_2 {

       public static void main(String afe[]){

              String putIn = “The past is gone and static. Nothing we can do will change it. Thefuture is before us and dynamic. Everything we do will affect it.”

              char findChar,temp;

              int num = 0;

 

Scanner input=new Scanner(System.in);

              System.out.println("请输入要查找的字符：");

              findChar = input.next().charAt(0);

 

              for(int i = 0;i<putIn.length();i++){

                     temp = putIn.charAt(i);

                     if(temp == findChar){

                            num++;

                     }

              }

              System.out.println("字符串"+putIn+"中包含"+findChar+"个数为："+num);

       }

      

}

Answer 1

接收键盘输入的 字符串，并且取出它的第一个字符。