Anagram Strings program with Java HackerRank Solutions
Objective
Two strings, a and b, are called anagrams if they contain all the same characters in the same frequencies. For this challenge, the test is not case-sensitive. For example, the anagrams of CAT are CAT, ACT, tac, TCA, aTC, and CtA.
Function Description
Complete the isAnagram function in the editor.
isAnagram has the following parameters:
- string a: the first string
- string b: the second string
Returns
- boolean: If a and b are case-insensitive anagrams, return true. Otherwise, return false.
Input Format
The first line contains a string a.
The second line contains a string b.
Constraints
- 1<=length(a), length(b)<=50
- Strings a and b consist of English alphabetic characters.
- The comparison should NOT be case sensitive.
Sample Input 1
anagram
margana
Sample Output 1
Anagrams
Sample Input 2
anagramm
marganaa
Sample Output 2
Not Anagrams
Solution
import java.util.Arrays;
import java.util.Scanner;
public class Anagram {
static boolean isAnagram(String a, String b) {
if (a.length() != b.length())
return false;
a = a.toLowerCase();
b = b.toLowerCase();
char[] Arr1 = a.toCharArray();
char[] Arr2 = b.toCharArray();
Arrays.sort(Arr1);
Arrays.sort(Arr2);
return Arrays.equals(Arr1, Arr2);
}
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
String a = scan.next();
String b = scan.next();
scan.close();
boolean ret = isAnagram(a, b);
System.out.println(ret ? "Anagrams" : "Not Anagrams");
}
}
Steps involved in the solution
1. Import the necessary packages (java.util.Arrays and java.util.Scanner) for array operations and input reading.
2. Create a public class named Anagram to encapsulate the program.
3. Declare a static method named isAnagram that takes two strings, a and b, as parameters and returns a boolean indicating whether they are anagrams.
4. Within the isAnagram method, check if the lengths of the input strings a and b are equal. Convert the strings to lowercase, convert them to char arrays, sort the arrays, and then compare them.
5. In the main method, create a Scanner object to read input from the standard input. Prompt the user to enter two strings (a and b).
6. Call the isAnagram method with the input strings a and b, and store the result in a boolean variable ret.
7. Print "Anagrams" if ret is" true, and "Not Anagrams" if ret is false.
