Control and Looping Statements in C

What is the purpose of 'if' statement in C programming?

• The 'if' statement is used to repeat a block of code a specific number of times in C programming.

• The 'if' statement is used for declaring variables in C programming.

• The 'if' statement is used to define functions in C programming.

• The purpose of the 'if' statement in C programming is to conditionally execute code.

How is 'else if' statement different from 'if' statement?

• The 'else if' statement can only be used after an 'if' statement, while the 'if' statement can be used independently.

• The 'else if' statement can have multiple 'else' blocks, while the 'if' statement can only have one 'else' block.

• The 'else if' statement is used for multiple sequential conditions, while the 'if' statement is used for a single condition.

• The 'else if' statement is used for checking boolean conditions, while the 'if' statement is used for arithmetic operations.

Explain the syntax of 'for' loop in C.

• for(start; end; step)

• for(initialization; condition; increment/decrement)

• for(begin; check; modify)

• for(initialization; condition; update)

What is the significance of 'break' statement in loops?

• The 'break' statement is significant in loops as it allows for early termination of the loop.

• Using 'break' in loops causes an infinite loop

• The 'break' statement is used to skip the loop entirely

• Break statement is only applicable in switch-case statements

When would you use 'continue' statement in a loop?

• When you want to execute the loop in reverse order

• When you want to repeat the loop indefinitely

• When you want to end the loop immediately

• When you want to skip the current iteration and move to the next one.

What is the difference between 'while' and 'do-while' loop?

• The difference is in the syntax used: 'while' loop uses parentheses for the condition, 'do-while' loop uses brackets.

• The difference is in when the condition is checked: 'while' loop checks before executing, 'do-while' loop checks after executing.

• The difference is in the loop type: 'while' loop is for infinite loops, 'do-while' loop is for conditional loops.

• The difference is in the order of execution: 'while' loop executes the code block first, 'do-while' loop executes the condition first.

How can you create an infinite loop in C?

• Utilize a switch statement with no cases

• Implement a do-while loop without a break statement

• Use a for loop with a condition that never ends

• Use a while loop with a condition that always evaluates to true, such as 'while(1)'

Explain the concept of nested loops in C.

• Nested loops in C are implemented by having one loop inside another loop. The inner loop runs to completion for each iteration of the outer loop.

• Nested loops in C are not supported by the language.

• Nested loops in C involve using the same loop variable for both loops.

• Nested loops in C are implemented by having one loop inside another loop. The inner loop runs independently of the outer loop.

What is the role of 'switch' statement in C programming?

• It is used to execute a block of code based on the value of a variable.

• It is used to define functions in C programming.

• It is used to create loops in C programming.

• It is used to declare variables in C programming.

How do you use 'case' and 'default' in a 'switch' statement?

• You use 'case' to specify the action to take if none of the values match, and 'default' to define the different possible values.

• You use 'case' to define different possible values and their corresponding actions, and 'default' to specify the action to take if none of the 'case' values match.

• You use 'case' to define the default action, and 'default' to specify the different possible values.

• You use 'case' to define the different possible values, and 'default' to specify the action to take if one of the 'case' values match.