OR Operator in Java:

Definition:

In Java, the OR operator is represented by || (logical OR) or | (bitwise OR). The logical OR (||) evaluates two boolean expressions and returns true if at least one of the operands is true. The bitwise OR (|) operates on individual bits of two operands and returns 1 in each bit position where at least one of the bits is 1.

Example:

Logical OR (||):

boolean a = true;
boolean b = false;
boolean result = a || b;

Output:

result will be true, because a is true.

Bitwise OR (|):

int a = 5;  // Binary: 0101
int b = 3; // Binary: 0011
int result = a | b;

Output:

result will be 7, Binary: 0111

Features of OR Operator:

  • Short-circuits, meaning if the first operand evaluates to true, the second operand is not evaluated.
  • Always evaluates both operands and operates on binary representations of numbers.

Advantages:

  • Efficient with short-circuit evaluation when only one condition is needed to be true.
  • Efficient in manipulating individual bits in data, commonly used in low-level programming.

Uses:

  • Used in conditional statements where multiple conditions need to be checked.
  • Used in bit manipulation, networking, flags, and low-level operations.

AND Operator in Java:

Definition:

In Java , the AND operator is represented by && (logical AND) or & (bitwise AND). The logical AND (&&) checks two boolean expressions and returns true if both operands are true. The bitwise AND (&) operates on individual bits and returns 1 in each bit position where both bits are 1.

Example:

Logical AND (&&):

boolean a = true;
boolean b = false;
boolean result = a && b;

Output:

result will be false, because b is false.

Bitwise AND (&):

int a = 5;  
int b = 3;
int result = a & b;

Output:

result will be 1, Binary: 0001

Features of AND Operator:

  • Short-circuits, meaning if the first operand is false, the second operand is not evaluated.
  • Always evaluates both operands and operates on binary representations of numbers.

Advantages:

  • Helps in improving performance through short-circuit evaluation when both conditions must be true.
  • Efficient in masking and clearing specific bits.

Uses:

  • Used in conditional statements where multiple conditions must be met.
  • Used in bit masking, checksum calculations, and low-level programming for managing data.

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