Practice Passing Parameters (call By Value) (5.8) - Chapter 5: Methods and Parameter Passing in Java

Practice: Passing Parameters (Call by Value)

Lesson 5.8Methods and Parameter Passing in Java

Practise this section

9 questions

Flashcard drill
3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What does call by value mean?
Show hintHide hint
Think about whether the original variable is affected.
Question 2.
In the following code, will the variable num change after method call? changeValue(num);
Show hintHide hint
Remember what happens to the parameter inside the method.
3Question 3.
What does 'call by value' mean in Java?
- The original variable is passed
- A copy of the variable is passed
- Neither
Show hintHide hint
Think about whether the original data is altered.
4Question 4.
In a method, if you modify the parameter, will it affect the original variable?
- True
- False
Show hintHide hint
Consider the concept of copies.
Question 5.
How would you implement a method that can swap two integers? Considering Java's call by value behavior, explain how you'd return values.
Show hintHide hint
Think about how you would structure your data to allow two outputs.
Question 6.
Explain the implications of performance when passing large objects by value versus reference. Provide a brief example.
Show hintHide hint
Consider data transfer costs.

5 more questions in this section. Enroll free to practise them all.