Operators in C Language Quiz

Study Notes

Operators in C

Operators are symbols used to perform operations
There are several types of operators in C:
- Arithmetic operators
- Relational operators
- Shift operators
- Logical operators
- Bitwise operators
- Turnery or Conditional operators
- Assignment operators
- Misc. operators

Precedence of Operators

Precedence specifies the order in which operators are evaluated
Associativity specifies the direction of evaluation (left to right or right to left)

Arithmetic Operators

Used for performing mathematical operations
Examples:
- Plus operator (+)
- Minus operator (-)
- Multiplication operator (*)
- Division operator (/)
- Modulus operator (%)

Relational Operators

Used for comparing values
Examples:
- Less than (<)
- Greater than (>)
- Less than or equal to (<=)
- Greater than or equal to (>=)
- Equal to (==)
- Not equal to (!=)

Logical Operators

Used for combining conditions
Examples:
- Logical AND (&&)
- Logical OR (||)
- Logical NOT (!)

Bitwise Operators

Used for manipulating bits
Examples:
- Bitwise AND (&)
- Bitwise OR (|)
- Bitwise XOR (^)
- Bitwise NOT (~)
- Right shift (>>)
- Left shift (<<)

Assignment Operators

Used for assigning values
Examples:
- Simple assignment (=)
- Plus and assignment (+=)
- Subtract and assignment (-=)
- Multiply and assignment (*=)
- Divide and assignment (/=)
- Modulus and assignment (%=)

Increment and Decrement Operators

Used for incrementing or decrementing values
Examples:
- Pre-increment (++)
- Post-increment (++)
- Pre-decrement (--)
- Post-decrement (--)

Conditional Operator

Used for conditional statements
Syntax: exp1 ? exp2 : exp3

Bitwise Operators with Examples

Bitwise AND operator (&)
Bitwise OR operator (|)
Bitwise XOR operator (^)
Right shift operator (>>)
Left shift operator (<<)

Special Operators

Comma operator (,)
Sizeof operator (sizeof)
Pointer operators (& and *)
Member selection operators (.)

Evaluating Arithmetic Expressions

Evaluate expressions using operator precedence and associativity rules
Follow the steps:
1. Determine the order of operator binding
2. Obtain the equivalent mathematical equation
3. Evaluate the expression by following the operator binding sequence### Operator Binding in Arithmetic Expressions
The steps to determine operator binding in an arithmetic expression involve:
- Evaluating unary operators (unary +, unary -, ++, --) with right-to-left associativity
- Evaluating multiplicative operators (*, /, %) with left-to-right associativity
- Evaluating additive operators (+, -) with left-to-right associativity

Evaluating an Arithmetic Expression

The expression -a + b * c - d / e + f is evaluated by following the operator binding sequence
- Unary operators are bound to their operands from right to left
- Multiplicative operators are bound to their operands from left to right
- Additive operators are bound to their operands from left to right
The final expression is evaluated by following the operator binding sequence

Input-Output Operations

Input refers to providing data to a program
Output refers to writing data to a file or displaying it on the screen
Reading and writing characters can be done using printf() and scanf() functions
- getchar() function reads a single character from the keyboard and stores it in a character variable
- putchar() function displays a character value on the screen
gets() function reads a single string from the keyboard and stores it in a character array
puts() function displays a string on the screen

Formatted Input and Output

Formatted I/O functions are used to take various inputs from the user and display multiple outputs
These functions use format specifiers to display output in different formats
Format specifiers include %d for signed integer, %c for character, %f for decimal floating-point, %s for string, and more
printf() function is used to display output on the console screen
scanf() function is used to take input from the keyboard
sprintf() function stands for "string print" and is used to store formatted strings
sscanf() function is used to read formatted input from a string

Description

Test your knowledge on various types of operators in the C language, including arithmetic, relational, logical, bitwise, conditional, and more. Learn about the precedence of operators and how they are used in programming.

Operators in C Language Quiz

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Questions and Answers

What does the putchar function in C do?

Which function is used to read a single string from the keyboard in C?

What is the purpose of the scanf function in C?

Which format specifier would you use for reading a character in C?

What does the sprintf function in C stand for?

How is printf() different from puts() in C?

Which function is used to display a value like float, integer, character, or string on the console screen in C?

'&' operator is used in which function for storing variable values at memory locations?

'gets' and 'puts' functions are primarily used for what in C?

What type of value does %f represent as a format specifier in C?