1Z0-811 What is Java Practice Question

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✓

  Define a method, then define another method with the same name but different parameters, then ensure the method signatures are unique, then call the method with arguments that match one of the signatures.

  Why this is correct

  This is the correct order because you must have at least one method defined before you can overload it, then you create a second method with the same name but a different parameter list, verify that the signatures are indeed different, and finally call the method with appropriate arguments.

• ✗

  Define a method, then ensure the method signatures are unique, then define another method with the same name but different parameters, then call the method with arguments.

  Why it's wrong here

  This is incorrect because you cannot ensure unique signatures before defining the second method; uniqueness is checked after both methods exist.

• ✗

  Define another method with the same name but different parameters, then define a method, then ensure unique signatures, then call the method.

  Why it's wrong here

  This is incorrect because the order is reversed; you need an initial method to overload, so the first method must be defined before the second.

• ✗

  Call the method with arguments, then define a method, then define another method with the same name but different parameters, then ensure unique signatures.

  Why it's wrong here

  This is incorrect because you cannot call a method before it is defined; methods must exist before they can be invoked.