It defines the method signature. Frame the concept in practical terms so you can explain it during interview discussion.
A MethodType represents the parameter and return types of a method. It's crucial for creating MethodHandles because it specifies the exact method signature that should be matched. For example, to find a method that returns a String and takes an int as a parameter, you would define a MethodType with those types.
Additional Notes
What is MethodType in the context of MethodHandles?