以下文章提供了 Java 运算符的概述。 Java 运算符表示一种有助于对一个或多个操作数执行多种操作的符号。运算符可以是 +、-、/、* 等，具体取决于需求。
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有不同类型的运算符。
下面给出了java中运算符的类型：
算术运算符用于执行多种算术运算。
以下是Java中的算术运算符。
| Operator Name/ Symbol | Definition | Example |
| Addition(+) | It helps in adding two values. | A+B |
| Subtraction(-) | It helps in subtracting two values. | A-B |
| Modulus(%) | It helps in getting the remainder obtained by dividing two values. | A%B |
| Multiplication( * ) | It helps in multiplying two values. | A*B |
| Division ( / ) | Helps in dividing two values. | A/B |
位运算符常用于在 Java 中执行移位和按位运算。
以下是常用的按位运算符。
| Operator Name/ Symbol | Definition | Example |
| Bitwise AND operator (&) | It helps in comparing 2 operand’s corresponding bits. 1 will be returned if both the bits are 1; else 0 will be returned. | A&B |
| Bitwise OR operator (|) | It helps in comparing 2 operand’s corresponding bits. 1 will be returned if one of the bit is 1; else 0 will be returned. | A|B |
| Bitwise XOR operator (^) | It helps in comparing 2 operand’s corresponding bits. 1 will be returned if the corresponding bits are dissimilar, else 0 will be returned. | A^B |
| Bitwise complement operator (~) | It helps in inverting the pattern of bits. That is, 1 will be changed to 0 and 0 will be changed to 1. | ~B |
赋值运算符用于为某些变量赋值。
以下是Java中的赋值运算符。
| Operator Name/ Symbol | Definition | Example |
| -= | It helps subtract the right and left operators, thereby assigning the obtained result to the operator on the left. | A-=B |
| /= | Helps in dividing the right and left operators and thereby assigning the obtained result to the operator in the left. | A/=B |
| *= | It helps multiply right and left operators and thereby assign the obtained result to the operator on the left. | A*=B |
| += | It helps add right and left operators and thereby assign the obtained result to the operator on the left. | A+=B |
| ^= | Left operand value will be raised to the right operator power. | A^=B |
| %= | A modulus operator will be applied. | A%=B |
在Java中，三元运算符主要用于if-then-else条件替换。它是一种在 Java 编程中广泛使用的单行语句，只需要 3 个操作数。
| Operator Name/ Symbol | Definition | Example |
| condition?v1: v2 | V1 will be returned if the condition mentioned is true, and v2 will be returned if the condition is false. | A>B?A:B |
Java 中的自动递增和自动递减运算符有助于分别将值递增和递减 1。
| Operator Name/ Symbol | Definition | Example |
| ++ | The value will be incremented by 1. | A++; It is similar to A+=1 |
| — | The value will be decremented by 1. | A–; It is similar to A-=1 |
关系运算符是有助于检查操作数是否相等的运算符。除此之外，这些运算符还用于比较 2 个或更多值。
| Operator Name/ Symbol | Definition | Example |
| equals to(==) | If the left operand is equal to the right operand, true will be returned; else, false. | A==B |
| not equal to(!=) | If the left operand is not equal to the right operand, true will be returned; else, false. | A!=B |
| less than(<) | If the left operand is less than the right operand, true will be returned; else, false. | A |
| greater than(>) | If the left operand is greater than the right operand, true will be returned; else, false. | A>B |
| greater than or equal to(>=) | If the left operand is greater than or equal to the right operand, true will be returned else, false. | A>=B |
| Less than or equal to(<=) | If the left operand is less than or equal to the right operand, true will be returned else, false. | A<=B |
Java 中的逻辑运算符常用于布尔表达式。
下面是Java中的逻辑运算符。
| Operator Name/ Symbol | Definition | Example |
| Conditional AND(&&) | If both the Boolean expressions are satisfied, true will be returned else, false. | AD |
| Conditional OR(||) | If any of the Boolean expression is satisfied, true will be returned; else, false. | AD |
| Logical NOT(!) | It helps in inverting the operand’s logical state. That is, 1 will be changed to 0 and 0 will be changed to 1. | !B |
Java 中的移位运算符用于根据需要向左或向右移动位。
以下是 Shift 运算符。
| Operator Name/ Symbol | Definition | Example |
| Left Shift Operator ( << ) | X in binary notation will be shifted y bits left by shifting the zeroes from the right. | A<<2 |
| Right Shift Operator ( >> ) | X in binary notation will be shifted y bits right by discarding shifted bits. | B>>2 |
| Unsigned Right Shift Operator ( >>> ) | X in binary notation will be shifted y bits right by discarding shifted bits and shifting the zeroes from the right. | A>>>2 |
让我们看看这些运算符的优先级如何。
| Operator | Precedence |
| Postfix Operators | Exp++ Exp– |
| Unary Operators | ++Exp –Exp +_Exp –Exp~ ! |
| Multiplicative Operators | * / % |
| Additive Operators | + – |
| Shift Operators | << >> >>> |
| Relational Operators | < > <= >= instanceof |
| Equality Operators | == != |
| Bitwise AND Operator | & |
| Bitwise exclusive OR Operator | ^ |
| Bitwise inclusive OR Operator | | |
| Logical AND Operator | && |
| Logical OR Operator | || |
| Ternary Operators | ?: |
| Assignment Operators | = += -= *= /= %= &= ^= |= <<= >>= >>>= |
以上是Java 运算符的详细内容。更多信息请关注PHP中文网其他相关文章！
