Java Stdin and Stdout I-HackerRank Solution

It is a basic challenge which require you to read input from stdin(standard input) and write output to stdout(Standard output). For stdin you can use scanner class and specifying the input stream as System.in 

For example:

Scanner scanner = new Scanner(System.in);
String myString = scanner.next();
int myInt = scanner.nextInt();
scanner.close();

System.out.println("myString is: " + myString);
System.out.println("myInt is: " + myInt);

 

Task

In this challenge, you must read integers from stdin and then print them to stdout. Each integer must be printed on a new line. To make the problem a little easier, a portion of the code is provided for you in the editor below.

Input Format

There are 3 lines of input, and each line contains a single integer.

Sample Input

42
100
125

Sample Output

42
100
125

Solution:

import java.util.*;

public class Solution {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt();
        // Complete this line
        int b = scan.nextInt();
        // Complete this line
        int c = scan.nextInt();

        System.out.println(a);
        // Complete this line
        System.out.println(b);
        // Complete this line
        System.out.println(c);
    }
}