Java Expressions
In any programming language, if we want to perform any calculation or to frame any condition etc., we use a set of symbols to perform the task. These set of symbols makes an expression.
In the java programming language, an expression is defined as follows.
An expression is a collection of operators and operands that represents a specific value.
In the above definition, an operator is a symbol that performs tasks like arithmetic operations, logical operations, and conditional operations, etc.
Operands are the values on which the operators perform the task. Here operand can be a direct value or variable or address of memory location.
Expression Types
In the java programming language, expressions are divided into THREE types. They are as follows.
- Infix Expression
- Postfix Expression
- Prefix Expression
The above classification is based on the operator position in the expression.
Infix Expression
The expression in which the operator is used between operands is called infix expression.
The infix expression has the following general structure.
Example
Postfix Expression
The expression in which the operator is used after operands is called postfix expression.
The postfix expression has the following general structure.
Example
Prefix Expression
The expression in which the operator is used before operands is called a prefix expression.
The prefix expression has the following general structure.
Example
