anagram java program

by October 31, 2020 Java programs

Let’s learn anagram java program.

anagram java program

Two strings can be an anagram string if characters of one string contain same characters of another string by regrouping the characters.

For example:

String1 = “silent”;

String2 = “listen”;

In the above example String1 and String2 are two different strings.

By regrouping the characters of String1 we have another string String2. Hence above two strings are anagram.

To understand anagram program first learn strings and arrays.

Now let’s see string anagram program.

import java.util.Arrays;
public class Anagram
{
   public static void main(String[] args)
   {
      String strOne = "silent";
      String strTwo = "listen";
      // checking if two strings length are same
      if(strOne.length() == strTwo.length())
      {
         // converting strings to char array
         char[] charOne = strOne.toCharArray();
         char[] charTwo = strTwo.toCharArray();
         // sorting character array
         Arrays.sort(charOne);
         Arrays.sort(charTwo);
         // if sorted character arrays are same then the string is anagram
         boolean output = Arrays.equals(charOne, charTwo);
         if(output)
         {
            System.out.println(strOne + " and " + strTwo + " are anagram.");
         }
         else
         {
            System.out.println(strOne + " and " + strTwo + " are not anagram.");
         }
      }
      else
      {
         System.out.println(strOne + " and " + strTwo + " are not anagram.");
      }
   }
}

Output:

silent and listen are anagram.

anagram program using scanner

Now let’s learn to print anagrams using scanner or anagram program using scanner.

import java.util.Arrays;
import java.util.Scanner;
public class PrintAnagrams
{
   public static void main(String[] args)
   {
      Scanner sc = new Scanner(System.in);
      System.out.print("Please enter first string: ");
      String strOne = sc.nextLine();
      System.out.print("Please enter second string: ");
      String strTwo = sc.nextLine();
      // checking if length are same
      if(strOne.length() == strTwo.length())
      {
         // converting strings to character array
         char[] charOne = strOne.toCharArray();
         char[] charTwo = strTwo.toCharArray();
         // sorting character array
         Arrays.sort(charOne);
         Arrays.sort(charTwo);
         // if sorted character arrays are same then the string is anagram
         boolean result = Arrays.equals(charOne, charTwo);
         if(result)
         {
            System.out.println(strOne + " and " + strTwo + " are anagram.");
         }
         else
         {
            System.out.println(strOne + " and " + strTwo + " are not anagram.");
         }
      }
      else
      {
         System.out.println(strOne + " and " + strTwo + " are not anagram.");
      }
      sc.close();
   }
}

Output:

Please enter first string: triangle
Please enter second string: integral
triangle and integral are anagram.

Please enter first string: arun
Please enter second string: kumar
arun and kumar are not anagram.

string anagram program using function

In the below program we are going to write a function to check whether two strings are anagram.

import java.util.Arrays;
public class AnagramUsingFunction
{
   public static void main(String[] args)
   {
      char[] ch1 = { 'e', 'l', 'v', 'i', 's' };
      char[] ch2 = { 'l', 'i', 'v', 'e', 's' };
      if(checkAnagram(ch1, ch2))
      {
         System.out.println("two strings are anagram.");
      }
      else
      {
         System.out.println("two strings are not anagram.");
      }
   }
   static boolean checkAnagram(char[] ch1, char[] ch2)
   {
      int len1 = ch1.length;
      int len2 = ch2.length;
      // if length of both strings is not equal it cannot be anagram
      if(len1 != len2)
         return false;
      // sorting both strings
      Arrays.sort(ch1);
      Arrays.sort(ch2);
      // compare sorted strings
      for(int a = 0; a < len1; a++)
         if(ch1[a] != ch2[a])
            return false;
         return true;
   }
}

Output:

two strings are anagram.