Added a sorting algorithm in java

InsertionSort.java

@@ -0,0 +1,28 @@
+class InsertionSort { 
+    		static int arr[] = { 12, 11, 13, 5, 6 }; 
+
+
+	void sort(int arr[]) 
+	{ 
+		int n = arr.length; 
+		for (int i = 1; i < n; ++i) { 
+			int key = arr[i]; 
+			int j = i - 1; 
+
+			while (j >= 0 && arr[j] > key) { 
+				arr[j + 1] = arr[j]; 
+				j = j - 1; 
+			} 
+			arr[j + 1] = key; 
+		} 
+                for (int i = 0; i < arr.length; ++i) 
+			System.out.print(arr[i] + " ");    
+	} 
+
+	public static void main(String args[]) 
+	{ 
+
+		InsertionSort ob = new InsertionSort(); 
+		ob.sort(arr); 
+	} 
+}