Anagram in java

Java/Anagram.java

@@ -0,0 +1,49 @@
+// Check if two strings are anagrams of each other
+
+import java.util.*;
+
+public class Anagram {
+  public static void main(String[] args){
+		String firstString = "race";
+		String secondString = "care";
+
+		if (isAnagram(firstString, secondString))
+			System.out.print("Given strings are anagrams of each other");
+		else
+			System.out.print("Given strings are not anagrams of each other");
+	}
+
+	public static boolean isAnagram(String firstString, String secondString){
+		if (firstString.length() != secondString.length())
+			return false;
+
+		HashMap<Character, Integer> map = new HashMap<>();
+
+		for (int i = 0; i < firstString.length(); i++) {
+			if (map.containsKey(firstString.charAt(i))) {
+				map.put(firstString.charAt(i),
+						map.get(firstString.charAt(i)) + 1);
+			}
+			else {
+				map.put(firstString.charAt(i), 1);
+			}
+		}
+
+		for (int i = 0; i < secondString.length(); i++) {
+			if (map.containsKey(secondString.charAt(i))) {
+				map.put(secondString.charAt(i),
+						map.get(secondString.charAt(i)) - 1);
+			}
+			else {
+				return false;
+			}
+		}
+		Set<Character> keys = map.keySet();
+		for (Character key : keys) {
+			if (map.get(key) != 0) {
+				return false;
+			}
+		}
+		return true;
+	}
+}