Question 1

How does Cactoos compare to Guava for Java collections?

Accepted Answer

Cactoos offers object-oriented alternatives to Guava's static methods, focusing on immutability and composition. While Guava has a broader feature set and wider adoption, Cactoos is better for teams committed to pure OO design, though it may require more code verbosity.

Question 2

How to read a text file using Cactoos?

Accepted Answer

Use new TextOf(new File("/path.txt")).asString() to read a file as a string, as shown in the README's I/O examples. This declarative approach encapsulates I/O in objects, making it more modular but less concise than traditional methods.

Question 3

Is Cactoos thread-safe?

Accepted Answer

Yes, Cactoos objects are immutable by design, making them inherently thread-safe. However, I/O operations with shared resources still require careful handling to avoid concurrency issues in practical use.

Question 4

What are the performance implications of using Cactoos?

Accepted Answer

Cactoos can introduce overhead due to object creation for each operation, which might impact performance in high-throughput scenarios. Static methods from JDK or Guava are generally more efficient, but the difference is often negligible for typical applications.

Question 5

How to migrate from Apache Commons to Cactoos?

Accepted Answer

Replace static method calls with corresponding Cactoos objects, such as using TextOf instead of IOUtils.toString. The README includes a comparison table to guide transitions, but expect significant refactoring due to the object-oriented paradigm shift.

Question 6

Does Cactoos support Java 11 or later?

Accepted Answer

Cactoos requires Java 8+ and is compatible with newer versions like Java 11. However, always verify with the latest releases for any version-specific updates or breaking changes, as the library emphasizes minimal dependencies.

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