Bitwise Operators in Programming
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Questions and Answers

What are bitwise operators and their primary function?

Bitwise operators are used to perform operations on binary numbers at the bit level, allowing manipulation of individual bits in integers.

Demonstrate how the bitwise AND operator works with an example.

The bitwise AND operator (&) compares each bit of two operands; for example, 5 & 3 equals 1 because binary 101 & 011 results in 001.

How does the bitwise OR operator differ from the AND operator?

The bitwise OR operator (|) combines bits from two integers, resulting in 5 | 3 equals 7, as binary 101 | 011 yields 111.

Explain the purpose of the bitwise NOT operator with an example.

<p>The bitwise NOT operator (<code>~</code>) inverts all bits of its operand; for instance, <code>~5</code> equals <code>-6</code> because binary <code>101</code> becomes <code>010</code>.</p> Signup and view all the answers

What is the function of the XOR bitwise operator, and give an example?

<p>The XOR operator (<code>^</code>) returns <code>1</code> for bits that are different; <code>5 ^ 3</code> equals <code>6</code> since binary <code>101 ^ 011</code> results in <code>110</code>.</p> Signup and view all the answers

Study Notes

Bitwise Operators Overview

  • Bitwise operators perform operations on binary representations of integers by comparing each corresponding bit.
  • They operate at the bit level and are commonly used for low-level programming and performance optimization.

Bitwise AND Operator

  • The bitwise AND operator (&) compares each bit of two integers and results in 1 only if both bits are 1.
  • Example:
    • 5 & 3
    • Binary of 5: 0101
    • Binary of 3: 0011
    • Resulting binary: 0001 which is 1 in decimal.

Bitwise OR Operator

  • The bitwise OR operator (|) compares bits of two integers and returns 1 if at least one of the bits is 1.
  • Unlike AND, it combines bits where either corresponding bit is 1.
  • Example:
    • 5 | 3
    • Resulting binary: 0111 which equals 7 in decimal.

Bitwise NOT Operator

  • The bitwise NOT operator (~) inverts each bit of an integer, changing 1s to 0s and 0s to 1s.
  • Example:
    • ~5
    • Binary of 5: 0101
    • Resulting binary: 1010 which represents -6 in two's complement form.

XOR Bitwise Operator

  • The XOR (exclusive OR) operator (^) outputs 1 if the corresponding bits of two integers are different.
  • Example:
    • 5 ^ 3
    • Binary of 5: 0101
    • Binary of 3: 0011
    • Resulting binary: 0110 which is 6 in decimal.

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Description

This quiz covers bitwise operators, their functions, and examples of usage in programming. You will explore the bitwise AND, OR, NOT, and XOR operators while understanding how they differ and when to use each. Test your knowledge with practical examples to solidify your understanding.

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