Mastering C# Conditional Statements

What is the purpose of an if statement in C#?

• To create loops in C#

• The purpose of an if statement in C# is to control the execution of code based on a condition.

• To declare variables in C#

• To define classes in C#

How do you write an if-else statement in C#?

• if (condition) { // code } else { // code }

• if condition { // code } else // code

• if (condition) { // code } else if { // code }

• if (condition) // code else { // code }

What is a nested if statement? Provide an example.

• if (x < 10) { console.log('x is less than 10'); }

• Example: if (x > 10) { if (y < 5) { console.log('x is greater than 10 and y is less than 5'); } }

• if (y > 5) { if (x == 10) { console.log('y is greater than 5 and x is equal to 10'); } }

• if (x == 5) { console.log('x is equal to 5'); }

Explain the switch statement and when to use it.

• The switch statement is a type of conditional that only works with strings.

• The switch statement can only handle boolean values.

• The switch statement is used to execute different parts of code based on the value of a variable, particularly when there are multiple possible values.

• The switch statement is used for looping through arrays.

What will be the output of the following code: if (x > 10) { Console.WriteLine("Greater"); }?

• Greater

• Not Greater

• Equal

• Less

How can you use multiple conditions in an if statement?

• You can use logical operators like '&&' for 'and' and '||' for 'or' to combine multiple conditions.

• You can use mathematical operators like '+' and '-' to combine conditions.

• You must use a switch statement instead of if.

• You can only use one condition in an if statement.

What is the difference between == and = in C#?

• The difference is that '=' assigns a value, and '==' checks for equality.

• Both '=' and '==' are used for assignment in C#.

• '==' is used to declare variables, while '=' is for comparison.

• '=' checks for equality, and '==' assigns a value.

Can you use a switch statement with strings in C#?

• Yes, you can use a switch statement with strings in C#.

• No, switch statements only work with integers.

• Yes, but only in older versions of C#.

• Switch statements cannot be used with any data types.

What happens if no case matches in a switch statement?

• The default case is executed automatically.

• The switch statement throws an error if no case matches.

• The program enters an infinite loop.

• The control flow exits the switch statement without executing any case.

How do you handle default cases in a switch statement?

• Ignore unmatched cases entirely.

• Use 'default:' to handle cases not matched by any case statements.

• Use 'case' to handle all scenarios.

• Always return a value in the default case.