Work with IDE and Writing Simple Programs
Java Program 

public class PrintVariables
{
    public static void main(String[] args)
    {
        // Declare variables
        int number = 10;
        String message = "Hello, Java!";
        double price = 19.99;

        // Print variables
        System.out.println("The value of number: " + number);
        System.out.println("The message is: " + message);
        System.out.println("The price is: " + price);
    }
}