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Questions and Answers
What does a relational operator return if the relation is true in C language?
What does a relational operator return if the relation is true in C language?
- 1 (correct)
- 'true'
- 'false'
- 0
Which operator is used for 'greater than' in C language?
Which operator is used for 'greater than' in C language?
- >=
- ==
- <
- > (correct)
What will be the output of the following code:
int a = 10, b = 20;
if (a > b)
printf("a is greater than b");
else if (a < b)
printf("a is less than b");
else
printf("a is equal to b");```
What will be the output of the following code:
int a = 10, b = 20;
if (a > b)
printf("a is greater than b");
else if (a < b)
printf("a is less than b");
else
printf("a is equal to b");```
- a is equal to b
- a is greater than b
- a is less than b (correct)
- Compiler error
Which relational operator is used to check if two values are not equal in C language?
Which relational operator is used to check if two values are not equal in C language?
What will be the value of 'b' after the following code execution:
int a = 5, b;
b = (a == 5) ? 3 : 2;```
What will be the value of 'b' after the following code execution:
int a = 5, b;
b = (a == 5) ? 3 : 2;```
What is the first step in evaluating expressions within parenthesis in C?
What is the first step in evaluating expressions within parenthesis in C?
What is the order of evaluation for arithmetic expressions without parentheses?
What is the order of evaluation for arithmetic expressions without parentheses?
How is the arithmetic expression x = 9 – 12 / (3 + 3) * (2 – 1) evaluated?
How is the arithmetic expression x = 9 – 12 / (3 + 3) * (2 – 1) evaluated?
What happens when nested parentheses are present in an arithmetic expression?
What happens when nested parentheses are present in an arithmetic expression?
What is the output of the C program: d = a + c / b; printf('The value of d = %d ', d); where a = 2, b = 6, and c = 12?
What is the output of the C program: d = a + c / b; printf('The value of d = %d ', d); where a = 2, b = 6, and c = 12?
What is the syntax for the increment operator in C?
What is the syntax for the increment operator in C?
What does the increment operator (++var_name;) do?
What does the increment operator (++var_name;) do?
What is the output of the C program with the arithmetic expression: e = (a + b) * c / d; where a = 20, b = 10, c = 15, and d = 5?
What is the output of the C program with the arithmetic expression: e = (a + b) * c / d; where a = 20, b = 10, c = 15, and d = 5?
What is the order of evaluation for arithmetic expressions with parentheses?
What is the order of evaluation for arithmetic expressions with parentheses?
What does a relational operator return if the relation is false in C language?
What does a relational operator return if the relation is false in C language?
What is the output of the C program with the arithmetic expression: x = 9 - 12 / (3 + 3) * (2 - 1)?
What is the output of the C program with the arithmetic expression: x = 9 - 12 / (3 + 3) * (2 - 1)?
What is the output of the C program with the arithmetic expression: e = (a + b) * c / d; where a = 20, b = 10, c = 15, and d = 5?
What is the output of the C program with the arithmetic expression: e = (a + b) * c / d; where a = 20, b = 10, c = 15, and d = 5?
What is the syntax for the conditional operator in C?
What is the syntax for the conditional operator in C?
Which operator is used for 'greater than or equal to' in C language?
Which operator is used for 'greater than or equal to' in C language?
What will be the value of 'b' after the following code execution: b = ((a == 5) ? 3 : 2); where a = 5?
What will be the value of 'b' after the following code execution: b = ((a == 5) ? 3 : 2); where a = 5?
What is the order of evaluation for arithmetic expressions with parentheses?
What is the order of evaluation for arithmetic expressions with parentheses?
What happens when nested parentheses are present in an arithmetic expression?
What happens when nested parentheses are present in an arithmetic expression?
How is the arithmetic expression x = 9 – 12 / (3 + 3) * (2 – 1) evaluated?
How is the arithmetic expression x = 9 – 12 / (3 + 3) * (2 – 1) evaluated?
What is the output of the C program: d = a + c / b; printf('The value of d = %d ', d); where a = 2, b = 6, and c = 12?
What is the output of the C program: d = a + c / b; printf('The value of d = %d ', d); where a = 2, b = 6, and c = 12?
What is the syntax for the increment operator in C?
What is the syntax for the increment operator in C?
What is the syntax for the decrement operator in C?
What is the syntax for the decrement operator in C?
What will be the value of 'e' after the following code execution: e = ((a + b) * c) / d; where a = 20, b = 10, c = 15, and d = 5?
What will be the value of 'e' after the following code execution: e = ((a + b) * c) / d; where a = 20, b = 10, c = 15, and d = 5?
What will be the value of 'b' after the following code execution: b = (a == 5) ? 3 : 2; where a = 5?
What will be the value of 'b' after the following code execution: b = (a == 5) ? 3 : 2; where a = 5?
What is the first step in evaluating expressions within parenthesis in C?
What is the first step in evaluating expressions within parenthesis in C?
What is the order of evaluation for arithmetic expressions without parentheses?
What is the order of evaluation for arithmetic expressions without parentheses?
Study Notes
Relational Operators
- A relational operator returns 1 (true) if the relation is true and 0 (false) if the relation is false in C language.
- The 'greater than' operator in C language is >.
Conditional Operator
- The conditional operator is used to check if two values are not equal in C language, denoted by !=.
- The syntax for the conditional operator in C is
expression1 ? expression2 : expression3.
Arithmetic Expressions
- When evaluating expressions within parentheses in C, the first step is to evaluate the expressions inside the parentheses.
- The order of evaluation for arithmetic expressions without parentheses is from left to right.
- When nested parentheses are present in an arithmetic expression, the innermost parentheses are evaluated first.
- The arithmetic expression
x = 9 – 12 / (3 + 3) * (2 – 1)is evaluated as follows:- Evaluate the expression inside the parentheses first:
3 + 3 = 6and2 - 1 = 1. - Then,
12 / 6 = 2and9 - 12 / 6 * 1 = 9 - 2 * 1 = 7.
- Evaluate the expression inside the parentheses first:
Increment and Decrement Operators
- The syntax for the increment operator in C is
++var_name;. - The increment operator
++var_name;increments the value ofvar_nameby 1. - The syntax for the decrement operator in C is
--var_name;.
Example Programs
- The output of the C program
d = a + c / b; printf('The value of d = %d ', d);wherea = 2,b = 6, andc = 12isd = 2 + 12 / 6 = 4. - The output of the C program with the arithmetic expression
e = (a + b) * c / d;wherea = 20,b = 10,c = 15, andd = 5ise = (20 + 10) * 15 / 5 = 450 / 5 = 90. - The output of the C program with the arithmetic expression
x = 9 - 12 / (3 + 3) * (2 - 1)isx = 9 - 12 / 6 * 1 = 7. - The value of
bafter the code executionb = ((a == 5) ? 3 : 2);wherea = 5isb = 3.
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Description
Test your knowledge of relational and logical operators in C language with this quiz. Learn about comparing values, using relational operators to check relationships between values, and the use of logical operators to make decisions based on multiple conditions.
