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Java program to check if two strings are anagrams (same letters in different order)

Java Examples Comprehensive

In this example, we will check if two strings are anagrams (anagrams) in Java, a new word formed by rearranging the letters of a word or sentence.

If we can form a string by rearranging the characters of another string, then we can say that the two strings are a jigsaw. For example,Race With Care。Here, we can rearrange the letters of Care to form the word Race.

Example1：Check if two strings are anagrams in Java

Example

import java.util.Arrays;
class Main {
　　public static void main(String[] args) {
　　　　String str1　= "Java";
　　　　String str2　= "Vaaj";
　　　　//Check if the lengths are the same
　　　　if(str1.length() == str2.length()) {
　　　　　　//Convert the string to a character array
　　　　　　char[] charArray1　= str1.toCharArray();
　　　　　　char[] charArray2　= str2.toCharArray();
　　　　　　//Sort the character arrays
　　　　　　Arrays.sort(charArray1);
　　　　　　Arrays.sort(charArray2);
　　　　　　//If the sorted character arrays are the same
　　　　　　//Then the string is an anagram
　　　　　　boolean result = Arrays.equals(charArray1, charArray2);
　　　　　　if(result) {
　　　　　　　　System.out.println(str1　+　" and "　+　str2　+　" is an anagram.");
　　　　　　}
　　　　　　else {
　　　　　　　　System.out.println(str1　+　" and "　+　str2　+　" is not an anagram.");
　　　　　　}
　　　　}
　　}
}

Output Result

Java and Vaaj are anagrams

In Java, we have two strings named str1and str2Here, we check if str1and str2whether they have the same letters but in a different order.

Here,

str1.toCharArray() - Convert the string to a char array
Arrays.sort() - Sort the two character arrays
Arrays.equal() - Check if the sorted char arrays are equal

If the sorted arrays are equal, then the strings are anagrams.

Example2：Get string input from the user and check if the strings are anagrams

Example

import java.util.Arrays;
import java.util.Scanner;
class Main {
　　public static void main(String[] args) {
　　　　//Create an object of the Scanner class
　　　　Scanner input = new Scanner(System.in);
　　　　//Accept user input
　　　　System.out.print("Enter the first string: ");
　　　　String str1　= input.nextLine();
　　　　System.out.print("Enter the second string: ");
　　　　String str2　= input.nextLine();
　　　　//Check if the lengths are the same
　　　　if(str1.length() == str2.length()) {
　　　　　　//Convert the string to a char array
　　　　　　char[] charArray1　= str1.toCharArray();
　　　　　　char[] charArray2　= str2.toCharArray();
　　　　　　//Sort the char array
　　　　　　Arrays.sort(charArray1);
　　　　　　Arrays.sort(charArray2);
　　　　　　//If the sorted char array is the same
　　　　　　//Then the string is an anagram
　　　　　　boolean result = Arrays.equals(charArray1, charArray2);
　　　　　　if(result) {
　　　　　　　　System.out.println(str1　+　" and "　+　str2　+　" is an anagram.");
　　　　　　}
　　　　　　else {
　　　　　　　　System.out.println(str1　+　" and "　+　str2　+　" is not an anagram.");
　　　　　　}
　　　　}
　　　　input.close();
　　}
}

Output Result

Enter the first string: Race
Enter the second string: Care
Race and Care are anagrams

In the above example, we useScannerThe class gets input from the user. Here, we check if the string provided by the user is an anagram.

Java Examples Comprehensive

Java Serialization Java Ternary Operator