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How to create a thread in JShell in Java 9?
JShell is an interactive java shell tool introduced in Java 9 and allows us to execute code snippets, and shows the result immediately without declaring the main() method like Java. It is a REPL (Read-Evaluate-Print- Loop) tool and runs from the command-line prompt. We can create variables, methods, classes, scratch variables, external libraries, and etc using JShell
In the below code snippet, we can create a thread by extending the Thread class.
C:\Users\User>jshell
| Welcome to JShell -- Version 9.0.4
| For an introduction type: /help intro
jshell> class ThreadTest extends Thread {
...> public void run() {
...> System.out.println("Thread in run() method");
...> }
...> public static void main(String args[]) {
...> ThreadTest t = new ThreadTest();
...> t.start();
...> }
...> }
| created class ThreadTestIn the below code snippet, the console prints "Thread in run() method" as an output to the user.
jshell> new ThreadTest().run(); Thread in run() method
Updated on: 27-Mar-2020
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