Added program to count occurence of an anagram

Author: AdithyaBhat17

Diff for: java/strings/Anagram.java

@@ -1,6 +1,4 @@
 public class Anagram {
-
-
     /*
      * Input: "Keep", "Peek"
      * Output: false

Diff for: java/strings/countAnagrams.java

@@ -0,0 +1,40 @@
+// Given a word and a text, return the count of occurences of anagrams of the word in the text(For eg: anagrams of word for are for, ofr, rof etc.)
+// For example : 
+//     Input: forxxorfxdofr
+//         for
+//     Output: 3
+
+import java.util.*;
+import java.io.*;
+
+class Anagrams{
+    final static int MAX = 256;
+    // to check if two strings are equal.
+    static boolean isAnagram(String s1, String s2){
+        char[] c1 = s1.toCharArray();
+        char[] c2 = s2.toCharArray();
+        Arrays.sort(c1);
+        Arrays.sort(c2);
+        if(Arrays.equals(c1, c2))
+            return true;
+        return false;
+    }
+
+    static int countAnagrams(String text, String word){
+        int N = text.length();
+        int n = word.length();        
+        int res = 0;
+        for(int i=0;i<=N-n;i++){
+            String s = text.substring(i, i+n);
+            if(isAnagram(word, s))
+                res++;
+        }
+        return res;
+    }
+
+    public static void main(String args[]){
+        String text = "forxxorfxdofr";
+        String word = "for";
+        System.out.println(countAnagrams(text, word));
+    }
+}