Java Output Formating Hackerrank Solution in Java

Problem-5:-

Java's System.out.printf function can be used to print formatted output. The purpose of this exercise is to test your understanding of formatting output using printf.

To get you started, a portion of the solution is provided for you in the editor; you must format and print the input to complete the solution.

Input Format

Every line of input will contain a String followed by an integer.
Each String will have a maximum of  alphabetic characters, and each integer will be in the inclusive range from  to .

Output Format

In each line of output there should be two columns:
The first column contains the String and is left justified using exactly  characters.
The second column contains the integer, expressed in exactly  digits; if the original input has less than three digits, you must pad your output's leading digits with zeroes.

Sample Input

java 100
cpp 65
python 50

Sample Output

================================
java           100 
cpp            065 
python         050 
================================

Explanation

Each String is left-justified with trailing whitespace through the first  characters. The leading digit of the integer is the  character, and each integer that was less than  digits now has leading zeroes.

Solution:-

import java.util.Scanner;

public class Solution {

    public static void main(String[] args) {

            Scanner sc=new Scanner(System.in);

            System.out.println("================================");

            for(int i=0;i<3;i++){

                String s1=sc.next();

                int x=sc.nextInt();

                System.out.printf("%-15s%03d\n", s1, x);

            }

            System.out.println("================================");

    }

}

Explanation:-

This is Java's formatter syntax. In this case, we have 2 parameters, that get formatted.

First s1 which is formatted using %-15s. The % means that what follows is an argument that will be formatted. Then follows a - resulting in left alignment. 15 fills the string up to a length of 15 characters (adding spaces at the end). Finally the s means, that you are formatting a string.

Second x which is formatted using %03d. Here the 0 is the fill character, meaning that, if necessary, zeros are added. The 3 is again the width, meaning the fill character 0 is added as many times as necessary to make it 3 digits long (this time at the beginning). Finally d means, that a integer is formatted.

Explanation source:- stackoverflow

Hackerrank Completion Proof:-

Hope, it Helps!!