Arithmetic Operations in a Programming Language
Arithmetic Operations in a Programming Language
Arithmetic Operations

Addition: It is represented by the
+
operator. This operation adds two operands together. For example,a + b
would add the values ofa
andb
. 
Subtraction: Represented by the

operator, this operation subtracts one operand from another. For example,a  b
would subtract the value ofb
froma
. 
Multiplication: This is depicted by the
*
operator. In an expression likea * b
, the value ofa
would be multiplied byb
. 
Division: The
/
operator is used for division.a / b
would divide the value ofa
byb
, yielding the quotient. 
Modulo: This operation, represented by the
%
symbol, gives the remainder after integer division. For example,a % b
returns the remainder aftera
is divided byb
. 
Increment: The
++
operator increases the value of a variable by 1. Ifa
is a variable,a++
increases its value by 1. 
Decrement: Similarly, the

operator reduces the value of a variable by 1. The operationa
would decrease the value of variablea
by 1.
Order of Operations
Emphasis must be made on the order of operations, usually remembered through the acronym PEMDAS:
 Parentheses: The highest priority is given to expressions in parentheses.
 Exponents: Next in line are exponents, which include powers and square roots, etc.
 Multiplication and Division: These are next in the precedence order. They are processed from left to right.
 Addition and Subtraction: These operations have the lowest priority and are also performed from left to right.
Casting and Type Conversion
Sometimes, you might need to perform operations with operands of different data types. In this case, you will need to use type casting:
 Implicit Casting: The programming language automatically converts one data type to another without the programmer’s intervention.
 Explicit Casting: The programmer uses specific functions or methods to convert the data type.
Unary and Binary Operations
 Unary Operations: These operations only involve one operand. Examples include increment (
++
) and decrement (
) operations.  Binary Operations: These operations involve two operands. Addition, subtraction, multiplication, division, and modulo are binary operations.