How to print a pattern of stars in JShell in Java 9?

JShellis a REPL tool introduced in Java 9 that allows us to execute Java code and getting results immediately. We canevaluateexpressionsor simple algorithms without creating a new project, compile or build it by using JShell. We can also execute expressions, use imports, define classes, methods, and variables. It is a part of Java 9 JDK but not JRE.

We can start JShell session in command-prompt by simply typingjshell. We can use different commands:/exitto quit the JShell session,reset/reloadJShell anytime by typing/reset, and /reload,/importto list the imports, etc.

In the below example, we canprint the starsin JShell by using the"for"loop.

C:\Users\User>jshell | Welcome to JShell -- Version 9.0.4 | For an introduction type: /help intro jshell> for(int i=0; i<10; i++) { ...> for(int j=0; j<=i; j++) ...> System.out.print("*"); ...> System.out.println(""); ...> } * ** *** **** ***** ****** ******* ******** ********* **********

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