Update BitSwap.java

removed the external getBit() method and replaced it with direct bitwise operations to check and swap bits more efficiently.

Author: MahaleHarsh

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

@@ -7,8 +7,10 @@ private BitSwap() {
      * @brief Swaps the bits at the position posA and posB from data
      */
     public static int bitSwap(int data, final int posA, final int posB) {
-        if (SingleBitOperations.getBit(data, posA) != SingleBitOperations.getBit(data, posB)) {
-            data ^= (1 << posA) ^ (1 << posB);
+       // Check if the bits at posA and posB are different
+        if (((data >> posA) & 1) != ((data >> posB) & 1)) {
+            // Swap the bits using XOR
+            data ^= (1 << posA) | (1 << posB);
         }
         return data;
     }