36.Stub Void Methods Explicitly

How do you stub a method that returns void?

• Mockito's doNothing()
• Custom stub implementation
• Use a mocking framework
• Void methods cannot be stubbed

What are void methods and return methods in Java?

• Void: no return value
• Return: returns a value
• Only void methods exist
• Both void and return methods are the same

What is void vs return method in Java?

• Void: no return value
• Return: has a return value
• Void is a return type
• Return methods are deprecated

How to pass a void method in Java?

• Simply call the method
• Cannot pass void methods
• Convert void method to a return method
• Use a wrapper class to pass void methods

How to convert void method to boolean in Java?

• Not possible, void methods have no return value.
• Modify the method to return a boolean value.
• Use exception handling to return a boolean indicating success or failure.
• Wrap the void method in a separate method that returns a boolean.

What is return in Java?

• A keyword used to terminate a loop or method.
• A statement that specifies the value to be returned from a method.
• An access modifier indicating the visibility of a class member.
• A reserved keyword with no specific purpose in Java.

Can we test void methods?

• Yes, we can test void methods.
• No, void methods cannot be tested.
• Testing void methods is unnecessary.
• Void methods are automatically tested.

How to test methods using JUnit?

• Create test methods with appropriate assertions using JUnit.
• Use a separate testing framework instead of JUnit.
• Invoke the methods manually and check the output.
• JUnit does not support testing methods.

What are void methods in Java?

• Methods that do not return a value.
• Methods with no parameters.
• Methods that throw exceptions.
• Methods that have a return type of void.

Why is void a return type?

• Void indicates the absence of a return value.
• Void is a placeholder for future return types.
• Void is a reserved keyword in Java.
• Void simplifies the return statement syntax.