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Java Java Objects Meet Objects Welcome Back

Posted by Sebastian García
Sebastian García
959 Points

Hi my name is Sebastian, I didin't understand what is the Jshell for?

In wich cases would I be using it?

Codrin Postu
Codrin Postu
8,022 Points

It is used to learn the language and just test and prototype your program. When you enter a variable or do a command you do not need to compile the program and run it. It will do it automatically for you.

This is the official site from oracle it explains pretty well: https://docs.oracle.com/javase/9/jshell/introduction-jshell.htm#JSHEL-GUID-630F27C8-1195-4989-9F6B-2C51D46F52C8

4 Answers

Unsubscribed User
Unsubscribed User
1,321 Points

Hello Sebastian,

"The Java Shell tool (JShell) is an interactive tool for learning the Java programming language and prototyping Java code. JShell is a Read-Evaluate-Print Loop (REPL), which evaluates declarations, statements, and expressions as they are entered and immediately shows the results." - Oracle

To put it simply, it's like 'creative/sandbox mode' for Java. You are able to test out things without adding things to code your working on.

If you want to learn a bit more CLICK HERE to go to Oracles Introduction to JShell.

Ela Silaeva
Ela Silaeva
1,581 Points
Ela Silaeva
Ela Silaeva
1,581 Points

To quickly test snippets of code. I used it for Reg Exes and Complicated expressions

kevin hudson
PLUS
kevin hudson
Courses Plus Student 11,987 Points
kevin hudson
kevin hudson
Courses Plus Student 11,987 Points

But doesn't this only work for one line code? How in depth can you get with jshell?

Amirmasoud jalali
PLUS
Amirmasoud jalali
Courses Plus Student 947 Points
Amirmasoud jalali
Amirmasoud jalali
Courses Plus Student 947 Points

can we use it for unit testing as well?