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Unary Operators (Java and Corel Paradox Cross Reference Guide)

By Mike Prestwood

Java versus Corel Paradox: A side by side comparison between Java and Corel Paradox.


A language symbol used for assignment, comparison, computational, or as a logical.

Unary Operators

[Other Languages] 

General Info: Unary Operator

An operation with only one operand (a single input). Common unary operators include + plus, - minus, and bitwise not. Some operators can function as both unary and binary operators. For example, + and - operators can serve as either.

Languages Focus

What unary operators are supported in additoin to the standard plus, minus, and bitwise not.


An operation with only one operand (a single input). The Java unary operators are ++, --, +, -, ~, and !.

  • + Indicates positive value (numbers are positive without this)
  • - Negates an expression
  • ++ Increment operator by 1
  • -- Decrement operator by 1
  • ! Logical complement operator (inverts the value of a boolean)
  • ~ Bitwise inversion operator (works on integral data types)
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Corel Paradox: 

The ObjectPAL unary operators are:


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