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Questions and Answers
What is an expression in C?
What is an expression in C?
An expression in C is made up of one or more operands, and it is a sequence of operands and operators that specifies the computation of a value.
Give an example of a meaningful expression in C.
Give an example of a meaningful expression in C.
An example of a meaningful expression in C is 'a=2+3', which involves three operands: a, 2, and 3, and two operators: = (assignment operator) and + (arithmetic addition operator).
What does an operand specify in C?
What does an operand specify in C?
An operand in C specifies an entity on which an operation is to be performed. It can be a variable name, a constant, a function call, or a macro name.
Provide an example of a valid expression involving three operands in C.
Provide an example of a valid expression involving three operands in C.
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How are operands and operators related in an expression in C?
How are operands and operators related in an expression in C?
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Study Notes
Expressions in C
- An expression consists of one or more operands and may involve operators.
- The simplest expression can just be a single operand, such as the number 3, which on its own doesn’t specify any operation.
- A meaningful expression involves multiple operands and operators, such as
a=2+3, which includes the variablesa,2, and3, along with the assignment operator=and the arithmetic addition operator+. - The purpose of an expression is to compute a value by combining operands and operators.
Operands in C
- An operand is an entity that an operation is performed on and can take several forms.
- Types of operands include variable names, constants, function calls, and macro names.
- For example, in the expression
a=printf("Hello")+2, there are three operands:a(a variable name),printf("Hello")(a function call that returns a value), and2(a constant).
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Description
Test your knowledge of C programming operators and expressions with this quiz based on Vikas Rattan's book. Explore the fundamentals of expressions, operands, and operations in C.
