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An expression is a combination of operators and operands.
The operands are the data items on which the operation is performed.
Operators perform operations on data
z = 5
Different types of expressions evaluated in C language are as follows -
Primary expression - The operands in this expression can be names , a constant, or any parenthesized expression. For example, c = a (5*b);
Postfix expression - In a postfix expression, the operator will come after the operands. For example, ab
Prefix expression - In a prefix expression, the operator comes before the operands. For example, ab
unary expression - it contains one operator and one operand. For example, a , --b
binary expression - it contains 2 operands and 1 operator. For example, a b, c-d
ternary expression - It contains 3 operands and 1 operator. For example; Experience 1? Experience 2: Experience 3. If Exp1 is true, Exp2 is executed. Otherwise, execute Exp3.
The following is a C program to calculate an expression in C language -
Live demonstration
#include <stdio.h> main(){ int a , b; a = 10; printf( "Value of b is %d</p><p>", (a == 1) ? 100: 200 );//ternary expression printf( "Value of b is %d</p><p>", (a == 10) ? 10: 20 );//ternary expression }
When the above program is executed, the following results will be produced-
Value of b is 200 Value of b is 10
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