Java Programming for Complete Beginners - Java 16 - Step 10 - Returning from a Java Method - an Introduction

The video tutorial explains how methods return values in programming, using examples like math.max. It contrasts methods that return values with void methods, which do not. The tutorial guides viewers on creating methods that return computed values, specifically focusing on a sum method. It highlights the importance of method naming and return types, providing a step-by-step implementation of a method that sums two numbers and returns the result.

What happens when you execute Math.max(4, 5)?

• It creates a new method.

• It returns the maximum value.

• It throws an error.

• It prints the maximum value.

Why does the sum method not create a variable when called?

• Because it is not executed.

• Because it has no parameters.

• Because it returns a value.

• Because it is a void method.

What is the main difference between a void method and a method that returns a value?

• Void methods can have parameters.

• Void methods are always public.

• Void methods do not return any value.

• Void methods are faster.

What must be changed in a void method to make it return an integer?

• Change the return type to int.

• Change the method name.

• Remove the method body.

• Add more parameters.

Why can't the new method be named 'sum'?

• Because it has no parameters.

• Because it is not a valid identifier.

• Because it has a different return type.

• Because it is a void method.

What is the purpose of the return statement in a method?

• To print the result.

• To declare a variable.

• To end the method execution.

• To return a value to the caller.

What is the result of calling the new method with parameters (15, 15)?

• It returns 0.

• It prints 30.

• It returns 30.

• It throws an error.