Search the courses, subjects, tracks, games and features, or jump straight to a page.
2 cards from this section. Quick, good the night before a test.
What does the scope of a variable determine?
Think about where you can use a variable.
Is a variable declared inside a method accessible outside that method?
Consider the lifetime of the variable.
What type of variable can only be accessed within its declaring method?
Consider where this variable can 'live'.
True or False: Instance variables are destroyed when the method they are in finishes.
Think about the duration of the object’s life.
Create a Java program that utilizes both local and instance variables in a class method, and demonstrates their scope through a simple output.
Make sure you understand where you're declaring each variable.
Explain the impact of modifying an instance variable versus a local variable within a method. What does this tell us about scopes?
Consider the overall program state after variable modification.
4 more questions in this section. Enroll free to practise them all.
Enroll free