Learn Java from Scratch - A Beginner's Guide - Step 10 - Returning from a Java Method - an Introduction

The video tutorial explains the concept of return values in methods, using Math.max as an example. It contrasts methods that return values with void methods, which do not return anything. The tutorial guides viewers on creating methods that return values, emphasizing the importance of correct syntax and naming conventions. It also covers testing these methods to ensure they work as expected.

What happens when you execute Math.max(15, 25)?

• It prints the maximum value to the console.

• It returns the maximum value, which can be stored in a variable.

• It throws an error because of incompatible types.

• It creates a new method called Max.

Why can't the result of a void method be stored in a variable?

• Because void methods return a string.

• Because void methods return a default value.

• Because void methods do not return any value.

• Because void methods return a boolean.

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

• Void methods can only print values.

• Void methods can accept more parameters.

• Methods that return values must have a return type specified.

• Methods that return values cannot be called directly.

What is the correct syntax to return a computed value from a method?

• output(value);

• return value;

• display(value);

• print(value);

Why can't you name a new method 'sum' if a method with the same name already exists?

• Because it will cause a syntax error.

• Because method names must be unique within the same parameter list.

• Because it will overwrite the existing method.

• Because it will cause a runtime error.

What is the return type of a method that calculates the sum of two integers?

• Boolean

• String

• Void

• Integer

What happens when you call the method 'sumOf2Numbers(1, 1)'?

• It returns the sum, which can be stored in a variable.

• It throws an error because of incompatible types.

• It prints the sum to the console.

• It returns a string representation of the sum.