Java class object method

Which of the following is the correct way to define a class in Java?

• class MyClass { }

• Class MyClass { }

• object MyClass { }

• public object MyClass { }

What is an object in Java?

• A variable

• An instance of a class

• A method inside a class

• A keyword

Which keyword is used to create an object in Java?

• create

• make

• new

• object

A method in Java must be defined inside:

• Package

• Class

• Object

• Interface only

Which of the following is NOT a valid method name in Java?

• getData()

• _processData()

• 123method()

• display()

What will be the output of this code? class Test { void show() { System.out.println("Hello"); } } public class Main { public static void main(String[] args) { Test t = new Test(); t.show(); }}

• show

• Hello

• Error

• Nothing

In Java, a method that does not return any value uses which return type?

• empty

• void

• null

• None

Which method is called automatically when an object is created?

• finalize()

• main()

• constructor

• static method

Which is true about methods in Java?

• Methods can exist outside classes

• Every method must have a return type

• Method name must be same as class name

• Method cannot be overloaded

What is method overloading?

• Writing multiple methods with the same name but different parameters

• Writing multiple methods with the same name and same parameters

• Writing methods in multiple classes

• Writing methods with different return types only