How do you use JShell with a simple code example?

JShell is a tool introduced in Java 9 that allows you to interactively evaluate Java expressions, statements, and programs. It is particularly useful for testing snippets of code and learning Java without the need to create formal classes and methods.


            // Start JShell by running the command 'jshell' in your terminal
            jshell
            
            // You can declare a variable
            int number = 10;
            
            // Print the variable
            System.out.println(number);
            
            // Perform a simple calculation
            int sum = number + 5;
            System.out.println("Sum: " + sum);