Practice Memory Leaks In Java (9.8) - Memory Management and Garbage Collection

Practice: Memory Leaks in Java

Lesson 9.8Memory Management and Garbage Collection

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9 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is a memory leak?
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Think about memory that can't be reclaimed.
Question 2.
Name one common cause of memory leaks in Java.
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Consider how static variables behave.
3Question 3.
What is a memory leak in Java?
- A situation where memory is reclaimed immediately.
- A scenario where memory usage increases without any object references.
- A state where memory that is no longer used cannot be reclaimed due to lingering references.
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Think about why the GC would fail to reclaim memory.
4Question 4.
True or False: WeakReference objects can be garbage collected if no strong references to them exist.
- True
- False
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Think about the purpose and characteristics of WeakReferences.
Question 5.
Design a Java application that uses a static list and ensure it safely manages memory without leaks.
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Consider when to clear the list for effective memory management.
Question 6.
Describe a scenario in which listeners cause memory leaks, and propose a coding solution to prevent this.
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Think about lifecycle events in your application.

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