The Complete Solidity Course - Zero to Advanced for Blockchain and Smart Contracts - How to Write If else Statements in

The video tutorial covers the basics of creating and initializing variables, specifically using an example of counting oranges. It then moves on to constructing a function with an if statement to validate the number of oranges. The tutorial explains the use of if-else logic in decision-making processes, emphasizing the importance of understanding how to evaluate conditions and return boolean values. The instructor also highlights the significance of using else statements in programming.

What type of variable is used to store the number of oranges?

• String

• Boolean

• Float

• Integer

What is the purpose of the validateOranges function?

• To check if the number of oranges is five

• To subtract oranges

• To display the number of oranges

• To add more oranges

What does the '==' operator do in an if statement?

• Subtracts two numbers

• Adds two numbers

• Compares two values for equality

• Assigns a value

What is the result of the validateOranges function if the number of oranges is changed to four?

• Undefined

• Error

• False

• True

What happens if the condition in an if statement is false and there is no else statement?

• Nothing happens

• The if block is executed

• An error is thrown

• The program crashes

Why is the else statement important in decision-making logic?

• It is not important

• It speeds up the program

• It provides an alternative action if the if condition is false

• It allows for multiple conditions to be checked

What is the implicit behavior of an if statement without an else block?

• It throws an error

• It returns false

• It always returns true

• It does nothing if the condition is false