Operators in C Language

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What does the precedence of operators determine?

The number of operands involved

The types of operations to be performed

The outcome of the operations

Which operator will be evaluated first (correct)

In the expression int value = 10+20*20, why does the variable 'value' contain 210?

Division takes precedence over multiplication

Addition is evaluated before multiplication

Multiplication is evaluated before addition (correct)

Subtraction is always calculated last

What is the main purpose of the Arithmetic Operators?

Handle bitwise operations

Perform logical operations

Perform mathematical operations (correct)

Assign values to variables

Which category of operator includes the unary operators +, -, and !?

Postfix Operators Signup and view all the answers

What is the purpose of the Plus operator (+) in C?

To add two given operands Signup and view all the answers

What is the result of the operation 20 / 4 * 2 + 5?

15 Signup and view all the answers

In C programming, which operator is used for logical OR?

|| Signup and view all the answers

What is the output of the code snippet if num1 = 30 and num2 = 50?

The value of num2 is greater than num1 Signup and view all the answers

What will the code snippet output if a = 10 and b = 20?

Both values are less than 0 Signup and view all the answers

Which assignment operator is equivalent to A = A + B?

+= Signup and view all the answers

What is the output when using the post increment operator on variables x, y, and z with initial values 10, 15, and 20?

The updated value of x: 11, updated value of y: 16, updated value of z: 21 Signup and view all the answers

What is the purpose of the decrement operator?

Decrease the original value by 1 Signup and view all the answers

In the context provided, what do pre increment and post increment operators have in common?

Both increase the value before assigning it Signup and view all the answers

What is the correct syntax for the post decrement operator?

X = A-- Signup and view all the answers

When using pre decrement operator on variables x=10, y=8, and z=6, what will be the updated values?

Updated value of x = 9, updated value of y = 7, updated value of z = 5 Signup and view all the answers

What does the sizeof() operator in C do?

Calculates the size of a variable in bytes Signup and view all the answers

In C arithmetic expressions, what are the unary operators used for?

Operating on a single operand Signup and view all the answers

What characterizes a valid arithmetic expression in C?

Correct usage of operators with operands Signup and view all the answers

How is the value of an arithmetic expression determined in C?

By following operator precedence and associativity rules Signup and view all the answers

What is the purpose of evaluating an arithmetic expression step by step in C?

To determine the value of the expression systematically Signup and view all the answers

What is the output of the program when entering x = 6, y = 12, and z = 18?

Updated value of x = 5, Updated value of y = 11, Updated value of z = 18 Signup and view all the answers

What is the purpose of the Bitwise AND operator in C?

Returns 1 if both corresponding bits are 1; otherwise, returns 0. Signup and view all the answers

What is the output of the program using the Bitwise OR operator with a=23 and b=10?

The output of the bitwise operator a|b is 31 Signup and view all the answers

What does the Bitwise exclusive OR operator do?

Returns 1 if both corresponding bits are 1; otherwise, returns 0. Signup and view all the answers

What is the purpose of the One's complement operator in C?

Performs negation on the bits of an operand. Signup and view all the answers

What is the first step to determine operator binding in an arithmetic expression?

Scan the expression from right to left and bind unary operators first Signup and view all the answers

What is the next step after binding unary operators in the operator binding process?

Bind multiplicative operators from left to right Signup and view all the answers

Why is the expression -a+ b * c - d I e + f considered valid according to the text?

It follows the correct order of scanning for each operator type Signup and view all the answers

In C programming, what is the purpose of the 'getchar()' function?

Read a single character from the keyboard Signup and view all the answers

What does 'putchar()' function do in C programming?

Display character values on screen or console Signup and view all the answers

What is the purpose of the 'putchar' function in C?

To write a single character to the standard output Signup and view all the answers

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

gets() Signup and view all the answers

What is the difference between 'gets' and 'puts' functions in C?

'gets' reads a string while 'puts' displays a string Signup and view all the answers

Which format specifier is used for reading an integer value in C?

%i Signup and view all the answers

What does the 'printf' function in C do?

Displays values on the console screen Signup and view all the answers

Which function is used for reading values from the keyboard in C?

scanf() Signup and view all the answers

What is the purpose of the 'sprintf' function in C?

To store formatted output in a string Signup and view all the answers

Which format specifier is used for reading a decimal floating-point value in C?

%f Signup and view all the answers

'&' operator is used in which function to store variable values in memory locations?

'scanf' Signup and view all the answers

'%c' format specifier in C is used for which type of data?

Character data Signup and view all the answers