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5 cards from this section. Quick, good the night before a test.
What is a memory-mapped file?
Think about how applications might read large files more efficiently.
What class do you use to access memory-mapped files in Java NIO?
Remember the channel that allows for file operations.
What does the FileChannel.open() method do?
Think about what happens when you want to handle file operations.
Memory-mapped files allow access in which way?
Consider the direct access feature.
You need to read a large log file efficiently without using traditional I/O methods. How could you implement this using a memory-mapped file? Include code snippets.
Think about how you access data once it's in the buffer.
Design a program that modifies a large file using memory-mapped files. What considerations should you keep in mind regarding performance and data consistency?
How can different threads access the same memory safely?
7 more questions in this section. Enroll free to practise them all.
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