Add SingleBitOperations (#4415)

* SingleBitOperators

* Tests

* Update SingleBitOperatorTest.java

* Update SingleBitOperators.java

* Update SingleBitOperators.java

* Update SingleBitOperators.java

* Update SingleBitOperatorTest.java

* deliting files

* Update SingleBitOperators.java

* Update SingleBitOperatorTest.java

* Update SingleBitOperators.java

* Update SingleBitOperators.java

* Update SingleBitOperatorTest.java

* Update SingleBitOperatorTest.java

* Update and rename SingleBitOperators.java to SingleBitOperator.java

* Update SingleBitOperatorTest.java

* Update SingleBitOperator.java

* Update SingleBitOperator.java

* Update SingleBitOperator.java

* style: declare private default constructor

* fix: remove `SetBitTest.java`

* Update and rename SingleBitOperator.java to SingleBitOperations.java

* Update SingleBitOperatorTest.java

* Update SingleBitOperations.java

* Update and rename SingleBitOperatorTest.java to SingleBitOperationsTest.java

---------

Co-authored-by: Piotr Idzik <65706193+vil02@users.noreply.github.com>

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

@@ -1,11 +0,0 @@
-package com.thealgorithms.bitmanipulation;
-/**
- * Clears the bit located at clear from num
- */
-
-public class ClearBit {
-    public static int clearBit(int num, int clear) {
-        int mask = ~(1 << clear);
-        return num & mask;
-    }
-}

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

@@ -1,10 +0,0 @@
-package com.thealgorithms.bitmanipulation;
-/**
- * Sets a specific bit to 1
- */
-
-public class SetBit {
-    public static int setBit(int num, int bit) {
-        return num | (1 << bit);
-    }
-}

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

@@ -0,0 +1,34 @@
+package com.thealgorithms.bitmanipulation;
+
+/*
+ * Author: lukasb1b (https://github.com/lukasb1b)
+ */
+
+public final class SingleBitOperations {
+    private SingleBitOperations() {
+    }
+    /**
+     * Flip the bit at position 'bit' in 'num'
+     */
+    public static int flipBit(final int num, final int bit) {
+        return num ^ (1 << bit);
+    }
+    /**
+     * Set the bit at position 'bit' to 1 in the 'num' variable
+     */
+    public static int setBit(final int num, final int bit) {
+        return num | (1 << bit);
+    }
+    /**
+     * Clears the bit located at 'bit' from 'num'
+     */
+    public static int clearBit(final int num, final int bit) {
+        return num & ~(1 << bit);
+    }
+    /**
+     * Get the bit located at 'bit' from 'num'
+     */
+    public static int getBit(final int num, final int bit) {
+        return ((num >> bit) & 1);
+    }
+}

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

@@ -1,13 +0,0 @@
-package com.thealgorithms.bitmanipulation;
-
-import static org.junit.jupiter.api.Assertions.*;
-
-import org.junit.jupiter.api.Test;
-
-public class ClearBitTest {
-    @Test
-    public void clearBitTest() {
-        assertEquals(5, ClearBit.clearBit(7, 1));
-        assertEquals(5, ClearBit.clearBit(5, 1));
-    }
-}

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

@@ -1,13 +0,0 @@
-package com.thealgorithms.bitmanipulation;
-
-import static org.junit.jupiter.api.Assertions.*;
-
-import org.junit.jupiter.api.Test;
-
-class SetBitTest {
-    @Test
-    void testSetBit() {
-        assertEquals(5, SetBit.setBit(4, 0));
-        assertEquals(3, SetBit.setBit(3, 1));
-    }
-}

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

@@ -0,0 +1,32 @@
+package com.thealgorithms.bitmanipulation;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import org.junit.jupiter.api.Test;
+
+public class SingleBitOperationsTest {
+
+    @Test
+    public void flipBitTest() {
+        assertEquals(1, SingleBitOperations.flipBit(3, 1));
+        assertEquals(11, SingleBitOperations.flipBit(3, 3));
+    }
+
+    @Test
+    public void setBitTest() {
+        assertEquals(5, SingleBitOperations.setBit(4, 0));
+        assertEquals(4, SingleBitOperations.setBit(4, 2));
+    }
+
+    @Test
+    public void clearBitTest() {
+        assertEquals(5, SingleBitOperations.clearBit(7, 1));
+        assertEquals(5, SingleBitOperations.clearBit(5, 1));
+    }
+
+    @Test
+    public void getBitTest() {
+        assertEquals(0, SingleBitOperations.getBit(6, 0));
+        assertEquals(1, SingleBitOperations.getBit(7, 1));
+    }
+}