package com.company;

import java.io.IOException;
import java.util.Scanner;

public class Favorite_Number {
    public static void main(String[] args) throws IOException {

        //write your code here
        int X,sum = 0,rem = 0,t;
        Scanner s = new Scanner(System.in);
        t = s.nextInt();
        while(t!=0) {
            s.reset();     what does it do if i remove also the program works fine 
            X = s.nextInt();
           /while (X > 0) {
                rem = X % 10;
                if (rem == 5) {
                    sum  ;
                }
                X = X / 10;
            }
            System.out.println(sum);
            sum = 0;
            t--;
        }

    }
}

s.reset(); what does it do if i remove also the program works fine

CodePudding user response：

reset is explained here with examples

https://www.geeksforgeeks.org/scanner-reset-method-in-java-with-examples/?tab=article

and as per documents purpose stated as... Resetting a scanner discards all of its explicit state information which may have been changed by invocations of useDelimiter(java.util.regex.Pattern), useLocale(java.util.Locale), or useRadix(int).

doc ref: https://docs.oracle.com/javase/7/docs/api/java/util/Scanner.html#reset()