clang format changes (added author and hide default constructor)

Author: prayas7102

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

@@ -1,15 +1,23 @@
 package com.thealgorithms.bitmanipulation;
 
-public class LowestSetBit {
+/**
+ * Lowest Set Bit
+ * @author Prayas Kumar (https://github.com/prayas7102)
+ */
 
+public class LowestSetBit {
+    // Private constructor to hide the default public one
+    private LowestSetBit() {
+    }
     /**
-     * Isolates the lowest set bit of the given number. For example, if n = 18 (binary: 10010),
-     * the result will be 2 (binary: 00010).
+     * Isolates the lowest set bit of the given number. For example, if n = 18
+     * (binary: 10010), the result will be 2 (binary: 00010).
      *
      * @param n the number whose lowest set bit will be isolated
      * @return the isolated lowest set bit of n
      */
     public static int isolateLowestSetBit(int n) {
+        // Isolate the lowest set bit using n & -n
         return n & -n;
     }
-}
+}

src/test/java/com/thealgorithms/bitmanipulation/LowestSetBitTest.java

@@ -4,6 +4,11 @@
 
 import org.junit.jupiter.api.Test;
 
+/**
+ * Test case for Lowest Set Bit
+ * @author Prayas Kumar (https://github.com/prayas7102)
+ */
+
 public class LowestSetBitTest {
 
     @Test
@@ -47,4 +52,4 @@ void testLowestSetBitWithLargeNumber() {
         // Test with a large number
         assertEquals(64, LowestSetBit.isolateLowestSetBit(448)); // 448 in binary: 111000000, lowest bit is 64
     }
-}
+}