Java Strings - 1 Hackerrank

This exercise is to test your understanding of Java Strings. A sample String declaration:

String myString = "Hello World!"

The elements of a String are called characters. The number of characters in a String is called the length, and it can be retrieved with the String.length() method.

Given two strings of lowercase English letters,

and

, perform the following operations:

  1. Sum the lengths of
and is lexicographically larger than (i.e.: does come before and
  1. and print them on a single line, separated by a space.

Input Format

The first line contains a string

. The second line contains another string

. The strings are comprised of only lowercase English letters.

Output Format

There are three lines of output:
For the first line, sum the lengths of

and .
For the second line, write Yes if is lexicographically greater than otherwise print No instead.
For the third line, capitalize the first letter in both and

and print them on a single line, separated by a space.

Sample Input 0

hello
java

Sample Output 0

9
No
Hello Java

Explanation 0

String

is "hello" and

is "java".

has a length of , and has a length of ; the sum of their lengths is .
When sorted alphabetically/lexicographically, "hello" precedes "java"; therefore, is not greater than

and the answer is No.

When you capitalize the first letter of both

and and then print them separated by a space, you get "Hello Java".

  • .
  • Determine if
  • in the dictionary?).
  • Capitalize the first letter in

    •  

     

    import java.io.*;
    import java.util.*;

    public class Solution {
        
        public static String capitalize(String str) {
        if(str == null || str.isEmpty()) {
            return str;
        }

        return str.substring(0, 1).toUpperCase() + str.substring(1);
    }

        public static void main(String[] args) {
            
            Scanner sc=new Scanner(System.in);
            String A=sc.next();
            String B=sc.next();
            /* Enter your code here. Print output to STDOUT. */
            int sum = A.length() +B.length();
            String concat = capitalize(A)+" "+capitalize(B);
            List<String> lst = new LinkedList<String>();
            lst.add(A);
            lst.add(B);
            Collections.sort(lst);
             System.out.println(sum);
            
            if (lst.get(0) == A){
                System.out.println("No");
            }else{
                System.out.println("Yes");
            }
            
            
           
     
            System.out.println(concat);
        }
    }





     

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