Added cyclic sort code

CyclicSort.java

@@ -0,0 +1,30 @@
+package com.saikat;
+
+import java.util.Arrays;
+
+public class CyclicSort {
+    public static void main(String[] args) {
+        int[] arr = {4,3,2,7,8,2,3,1};
+        sort(arr);
+        System.out.println(Arrays.toString(arr));
+    }
+
+    static void sort(int[] arr){
+        int i = 0;
+        while (i < arr.length){
+            int correctIndex = arr[i] - 1;
+            if (arr[i] != arr[correctIndex]){
+                swap(arr,i,correctIndex);
+            }else{
+                i++;
+            }
+        }
+
+    }
+
+    static void swap(int[] arr, int first, int second){
+        int temp = arr[first];
+        arr[first] = arr[second];
+        arr[second] = temp;
+    }
+}