Add LowestSetBit (#5567)

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

@@ -0,0 +1,34 @@
+package com.thealgorithms.bitmanipulation;
+
+/**
+ * Lowest Set Bit
+ * @author Prayas Kumar (https://github.com/prayas7102)
+ */
+
+public final 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).
+     *
+     * @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;
+    }
+    /**
+     * Clears the lowest set bit of the given number.
+     * For example, if n = 18 (binary: 10010), the result will be 16 (binary: 10000).
+     *
+     * @param n the number whose lowest set bit will be cleared
+     * @return the number after clearing its lowest set bit
+     */
+    public static int clearLowestSetBit(int n) {
+        // Clear the lowest set bit using n & (n - 1)
+        return n & (n - 1);
+    }
+}