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Java operators are special symbols that perform specific operations on one, two, or three operands and return a result. They are fundamental building blocks of expressions in Java programming. For example, the plus operator takes two operands and returns their sum.
Arithmetic operators perform mathematical calculations on numeric operands. The basic operators include addition, subtraction, multiplication, division, and modulus. The modulus operator returns the remainder of division. Java also provides increment and decrement operators that add or subtract one from a variable.
Relational operators compare values and return boolean results. They include equal to, not equal, greater than, less than, and their combinations. Logical operators combine boolean expressions using AND, OR, and NOT operations. The AND operator returns true only when both operands are true, while OR returns true when at least one operand is true.
Assignment operators assign values to variables. The simple assignment operator uses equals sign. Shorthand assignment operators combine arithmetic operations with assignment, making code more concise. The ternary operator provides a compact way to write conditional assignments. It evaluates a condition and returns one of two values based on whether the condition is true or false.
Operator precedence determines the order of evaluation in expressions. Unary operators have the highest precedence, followed by multiplicative, additive, relational, equality, logical, ternary, and assignment operators. For example, in the expression five plus three times two, multiplication is performed first, giving eleven, not sixteen. Understanding precedence is crucial for writing correct Java expressions and avoiding logical errors in your programs.