The difference between | and || in java

In Java | and || are logical operators that perform bitwise OR and logical OR operations respectively. Bitwise OR operates on individual bits, while logical OR operates on the Boolean value itself. | is typically used for bitwise operations, while || is used to combine Boolean expressions.

The difference between | and || in Java

In Java, | and || are logical operators , used to combine multiple Boolean values ​​in a Boolean expression. Although they are both used to evaluate Boolean expressions, their behavior is slightly different.

| (Bitwise OR)

| The operator performs a bitwise OR operation on the individual bits of each operand. The following rules apply to bitwise OR:

• If both bits are 0, the result is 0.
• If both bits are 1, the result is 1.
• If one bit is 0 and the other bit is 1, the result is 1.

For example:

<code>int x = 10; // 1010 (二进制)
int y = 5;  // 0101 (二进制)

int result = x | y; //按位 OR 1010 | 0101
System.out.println(result); //输出：1111 (等价于 15)</code>

|| (logical OR)

|| operator is used to evaluate Boolean expressions. The following rules apply to logical OR:

• If either operand is true, the result is true.
• The result is false only when all operands are false.

For example:

<code>boolean a = true;
boolean b = false;

boolean result = a || b; //逻辑 OR
System.out.println(result); //输出：true</code>

Summary

Main differences:

• | Performs a bitwise OR operation, while || performs a logical OR operation.
• The bitwise OR operation operates on the individual bits of each operand, while the logical OR operation operates on the Boolean value itself.

Usage:

• | Typically used for bit operations, such as setting or clearing a specific bit.
• || is used to combine Boolean expressions, which is very useful when you need to perform an operation under certain conditions.

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