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Java 9: Building Robust Modular Applications
book

Java 9: Building Robust Modular Applications

by Dr. Edward Lavieri, Peter Verhas, Jason Lee
April 2018
Intermediate to advanced content levelIntermediate to advanced
910 pages
33h 21m
English
Packt Publishing
Content preview from Java 9: Building Robust Modular Applications

What is JShell?

JShell is a new tool introduced with Java 9. It is an interactive read-eval-print loop tool that is used to evaluate the following Java programming language components--declarations, statements, and expressions. It has its own API so that it can be used by external applications.

Read-Eval-Print Loop is often referred to as REPL, taking the first letter from each word in the phrase. It is also knows language shell or interactive top-level.

The introduction of JShell was a result of Java Enhancement Program (JEP) 222. Here are the stated goals of this JEP in regards to the Java Shell command-line tool:

  • Facilitate rapid investigation
  • Facilitate rapid coding
  • Provide an edit history

The rapid investigation and coding listed previously ...

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Publisher Resources

ISBN: 9781788832823Supplemental ContentOtherPurchase LinkErrata Page