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Remove SetKthBit in favor of SingleBitOperations.setBit (#4991)

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Piotr Idzik 2024-01-03 23:28:59 +01:00 committed by GitHub
parent 6a0c0585e4
commit 092ac5795b
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3 changed files with 36 additions and 77 deletions
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22
src/main/java/com/thealgorithms/bitmanipulation/SetKthBit.java
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@ -1,22 +0,0 @@
package com.thealgorithms.bitmanipulation;
/***
* Sets the kth bit of a given integer to 1
* e.g. setting 3rd bit in binary of 17 (binary 10001) gives 25 (binary 11001)
* @author inishantjain
*/
public class SetKthBit {
/**
* Sets the kth bit of a given integer.
*
* @param num The original integer.
* @param k The position of the bit to set (0-based index).
* @return The integer with the kth bit set.
*/
public static int setKthBit(int num, int k) {
int mask = 1 << k;
num = num | mask;
return num;
}
}

23
src/test/java/com/thealgorithms/bitmanipulation/SetKthBitTest.java
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@ -1,23 +0,0 @@
package com.thealgorithms.bitmanipulation;
import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test;
class SetKthBitTest {
@Test
void testSetKthBit() {
// Test case: Setting the 0th bit in 5 (binary 101)
assertEquals(5, SetKthBit.setKthBit(5, 0));
// Test case: Setting the 2nd bit in 10 (binary 1010)
assertEquals(14, SetKthBit.setKthBit(10, 2));
// Test case: Setting the 3rd bit in 15 (binary 1111)
assertEquals(15, SetKthBit.setKthBit(15, 3));
// Test case: Setting the 1st bit in 0 (binary 0)
assertEquals(2, SetKthBit.setKthBit(0, 1));
}
}

68
src/test/java/com/thealgorithms/bitmanipulation/SingleBitOperationsTest.java
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@ -1,32 +1,36 @@
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));
}
}
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));
assertEquals(5, SingleBitOperations.setBit(5, 0));
assertEquals(14, SingleBitOperations.setBit(10, 2));
assertEquals(15, SingleBitOperations.setBit(15, 3));
assertEquals(2, SingleBitOperations.setBit(0, 1));
}
@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));
}
}