Fundamentals Of Object-Oriented Programming: Java and IntelliJ - Methods

The video tutorial covers Java methods, including static methods, method overloading, and the DRY principle. It demonstrates creating methods for greeting, calculating averages, finding minimum values, and converting text to uppercase. Key concepts include method signatures, parameters, return types, and method overloading.

What is the main reason for using methods in programming?

• To make code longer

• To avoid using parameters

• To reuse code and follow the DRY principle

• To make code harder to understand

What does a static method in Java belong to?

• An instance of a class

• The main class

• A subclass

• A separate object

What is method overloading?

• Using different return types for the same method

• Using the same method name with the same parameters

• Using the same method name with different parameters

• Using different method names for the same functionality

What is the return type of a method that calculates the average of two numbers?

• int

• String

• double

• void

What keyword is used to return a value from a method?

• exit

• return

• continue

• break

What type of value does the findMin method return?

• boolean

• String

• double

• int

How can you convert a string to uppercase in Java?

• Using the toCharArray method

• Using the toString method

• Using the toUpperCase method

• Using the toLowerCase method

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

• To return a value from the method

• To stop the method execution

• To print a value to the console

• To declare a variable

What happens if you try to return a double from a method that is supposed to return an int?

• The method will automatically cast the double to int

• The compiler will give an error

• The program will run without errors

• The method will return null

Which method is used to print output to the console in Java?

• System.err.println

• System.out.read

• System.in.read

• System.out.println