Add IsEven Algorithm (#4301)

Co-authored-by: BamaCharanChhandogi <b.c.chhandogi@gmailcom>

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

@@ -0,0 +1,12 @@
+package com.thealgorithms.bitmanipulation;
+
+/**
+ * Converts any Octal Number to a Binary Number
+ * @author Bama Charan Chhandogi (https://github.com/BamaCharanChhandogi)
+ */
+
+public class IsEven {
+    public static boolean isEven(int number) {
+        return (number & 1) == 0;
+    }
+}

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

@@ -0,0 +1,14 @@
+package com.thealgorithms.bitmanipulation;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import org.junit.jupiter.api.Test;
+
+class IsEvenTest {
+    @Test
+    void testIsEven() {
+        assertEquals(true, IsEven.isEven(2));
+        assertEquals(true, IsEven.isEven(-12));
+        assertEquals(false, IsEven.isEven(21));
+    }
+}