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Link for the Problem – Java Substring – Hacker Rank Solution

Java Substring – Hacker Rank Solution

Problem :

Given a string,8 , and two indices, start and end, print a substring consisting of all characters in the inclusive range from start to end-1 . You’ll find the String class’ substring method helpful in completing this challenge.

Input Format

The first line contains a single string denoting 8.
The second line contains two space-separated integers denoting the respective values of start and end .

Constraints

• String  consists of English alphabetic letters (i.e., ) only.

Output Format

Print the substring in the inclusive range from start to end-1 .

Sample Input

Helloworld
3 7

Sample Output

lowo

Explanation

In the diagram below, the substring is highlighted in green:

Java Substring – Hacker Rank Solution

import java.util.Scanner;

public class Solution {
    public static void main(String[] args) {
        /* Save input */
        Scanner scan = new Scanner(System.in);
        String A = scan.next();
        String B = scan.next();
        scan.close();
        
        /* Sum lengths */
        System.out.println(A.length() + B.length());

        /* Compare lexicographical ordering */
        System.out.println(A.compareTo(B) > 0 ? "Yes" : "No");
        
        /* Print the Strings in desired format */
        System.out.println(capFirstLetter(A) + " " + capFirstLetter(B));
    }
    
    private static String capFirstLetter(String str) {
        if (str == null || str.length() == 0) {
            return "";
        } else {
            return str.substring(0,1).toUpperCase() + str.substring(1);
        }
    }
}