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The Java™ Tutorials
Language Basics
Variables
Primitive Data Types
Arrays
Summary of Variables
Questions and Exercises
Operators
Assignment, Arithmetic, and Unary Operators
Equality, Relational, and Conditional Operators
Bitwise and Bit Shift Operators
Summary of Operators
Questions and Exercises
Expressions, Statements, and Blocks
Questions and Exercises
Control Flow Statements
The if-then and if-then-else Statements
The switch Statement
The while and do-while Statements
The for Statement
Branching Statements
Summary of Control Flow Statements
Questions and Exercises
Trail: Learning the Java Language
Lesson: Language Basics
Section: Operators
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The Java Tutorials have been written for JDK 8. Examples and practices described in this page don't take advantage of improvements introduced in later releases and might use technology no longer available.
SeeDev.java for updated tutorials taking advantage of the latest releases.
SeeJava Language Changes for a summary of updated language features in Java SE 9 and subsequent releases.
SeeJDK Release Notes for information about new features, enhancements, and removed or deprecated options for all JDK releases.

Summary of Operators

The following quick reference summarizes the operators supported by the Java programming language.

Simple Assignment Operator

=       Simple assignment operator

Arithmetic Operators

+       Additive operator (also used        for String concatenation)-       Subtraction operator*       Multiplication operator/       Division operator%       Remainder operator

Unary Operators

+       Unary plus operator; indicates        positive value (numbers are         positive without this, however)-       Unary minus operator; negates        an expression++      Increment operator; increments        a value by 1--      Decrement operator; decrements        a value by 1!       Logical complement operator;        inverts the value of a boolean

Equality and Relational Operators

==      Equal to!=      Not equal to>       Greater than>=      Greater than or equal to<       Less than<=      Less than or equal to

Conditional Operators

&&      Conditional-AND||      Conditional-OR?:      Ternary (shorthand forif-then-else statement)

Type Comparison Operator

instanceof      Compares an object to                 a specified type

Bitwise and Bit Shift Operators

~       Unary bitwise complement<<      Signed left shift>>      Signed right shift>>>     Unsigned right shift&       Bitwise AND^       Bitwise exclusive OR|       Bitwise inclusive OR
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