Posts

Showing posts with the label REPL

JShell in Java 9

Image
One of the new features added by Java 9 is the JShell.  In this blog post,  I will be explaining how JShell works. What is JShell ? JShell provides REPL capabilities to Java. REPL stands for Read Evaluate Print Loop. Many languages like Python also provide REPL capabilities. REPL allows you to write Java code and test it without the need to compile it.   How to launch JShell Step 1 – Make sure you have JDK 9 installed   Step 2 -Open a Command prompt and navigate to the JDK\bin folder   Step 3 – Type JShell How to Use JShell Type the code that you want to test. I have typed 4+5. Press Enter   Step 5 – View the results Example 2  – Using a Sysout statement Example 3 – Assigning a value to a variable and using it How to exit JShell Type /exit