Bit swap (TheAlgorithms#4770)

* Create BitSwap.java * Create BitSwapTest.java * Update BitSwap.java * Update BitSwap.java * Update BitSwapTest.java * Update BitSwap.java * Update BitSwap.java * Update BitSwapTest.java * Update BitSwapTest.java * Update src/main/java/com/thealgorithms/bitmanipulation/BitSwap.java Co-authored-by: Piotr Idzik <65706193+vil02@users.noreply.github.com> * Update src/test/java/com/thealgorithms/bitmanipulation/BitSwapTest.java Co-authored-by: Piotr Idzik <65706193+vil02@users.noreply.github.com> * Update BitSwap.java * Update BitSwap.java * Update BitSwap.java * Update src/main/java/com/thealgorithms/bitmanipulation/BitSwap.java Co-authored-by: Piotr Idzik <65706193+vil02@users.noreply.github.com> * Update src/main/java/com/thealgorithms/bitmanipulation/BitSwap.java Co-authored-by: Piotr Idzik <65706193+vil02@users.noreply.github.com> * Update src/test/java/com/thealgorithms/bitmanipulation/BitSwapTest.java Co-authored-by: Piotr Idzik <65706193+vil02@users.noreply.github.com> * style: remove redundant blank line --------- Co-authored-by: Piotr Idzik <65706193+vil02@users.noreply.github.com>

Author: lukasb1b

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

@@ -0,0 +1,15 @@
+package com.thealgorithms.bitmanipulation;
+
+public final class BitSwap {
+ 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);
+ }
+ return data;
+ }
+}

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

@@ -0,0 +1,13 @@
+package com.thealgorithms.bitmanipulation;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import org.junit.jupiter.api.Test;
+public class BitSwapTest {
+ @Test
+ void testHighestSetBit() {
+ assertEquals(3, BitSwap.bitSwap(3, 0, 1));
+ assertEquals(5, BitSwap.bitSwap(6, 0, 1));
+ assertEquals(7, BitSwap.bitSwap(7, 1, 1));
+ }
+}