Process API updates and jShell in Java 9

TL;DR

Java 9 introduces JShell, a lightweight Java runtime, and updates to the Process Handle class.

Transcript

hey did everyone have a share back again with another video and in this video we're gonna take down the subject which has been requested quite a lot and I haven't talked about it which is Java online and yes a lot of people think that I don't have any time to talk about Java but that's not correct actually I am involved still in a couple of clients... Read More

Key Insights

• 👨‍💻 Java 9 introduces JShell, a lightweight Java runtime for quick code experimentation.
• 👨‍💻 JShell is not meant for writing entire programs, but rather for testing and trying out code snippets.
• 🙃 Process Handle updates in Java 9 simplify the process of finding and managing process IDs in Java applications.
• 💨 Java 9's Process Handle class provides a more reliable and consistent way to handle process-related operations.
• 🔨 JShell is a useful tool for beginners to learn and understand Java programming concepts.
• 🥳 The process handle updates in Java 9 improve code readability and reduce dependencies on third-party libraries.
• 😄 JShell's simplicity and ease of use make it a valuable tool for rapid prototyping and debugging.

Questions & Answers

Q: What is JShell in Java 9?

JShell is a lightweight Java runtime that allows for quick testing and experimentation of code snippets, without the need for a full programming environment.

Q: How does JShell compare to similar tools in other programming languages?

JShell is similar to Python's idle and Swift's playgrounds, providing a quick and easy way to test code. However, JShell is not meant for writing full programs or saving code.

Q: What are some benefits of JShell?

JShell is a great tool for beginners to test code and experiment with different ideas. It can also be used to quickly check if code is working before implementing it in a full programming environment.

Q: What are the updates to the Process Handle class in Java 9?

Java 9 introduces an inbuilt Process Handle class in the Java.Lang module, allowing for easier management of process IDs. This eliminates the need for external libraries and platform-specific code.

Summary & Key Takeaways

• Java 9 introduces JShell, which allows for quick testing of code snippets without the need for a full programming environment.

• Process Handle updates in Java 9 make it easier to find and manage process IDs, simplifying the code required in previous versions.

• JShell is not meant for writing entire programs, but rather for quickly testing and experimenting with code.