Added Ones Complement

Author: Monk-AbhinayVerma

src/main/java/com/thealgorithms/bitmanipulation/OnesComplement.java

@@ -1,9 +1,13 @@
 package com.thealgorithms.bitmanipulation;
 
-import java.util.Scanner;
-
+/**
+ * @author - https://github.com/Monk-AbhinayVerma
+ * @Wikipedia - https://en.wikipedia.org/wiki/Ones%27_complement
+ * The class OnesComplement computes the complement of binary number and returns 
+ * the complemented binary string.
+ * @return the complimented binary string
+ */
 public class OnesComplement {
-
     // Function to get the 1's complement of a binary number
     public static String onesComplement(String binary) {
         StringBuilder complement = new StringBuilder();
@@ -19,21 +23,5 @@ public static String onesComplement(String binary) {
         return complement.toString();
     }
 
-    public static void main(String[] args) {
-        Scanner scanner = new Scanner(System.in);
-
-        // Input a binary number
-        System.out.print("Enter a number: ");
-        int number = scanner.nextInt();
-        
-        String binary = Integer.toBinaryString(number);
-
-        // Compute and print the 1's complement
-        String result = onesComplement(binary);
-        int n = Integer.parseInt(result, 2);
-        System.out.println("1's complement of " + number +"("+binary+")"+" is: " + n + "("+result+")");
-
-        scanner.close();
-    }
 }