I am finding Java hard to undertand.

why don't you try ruby or python first? they are in my opinion easier than Java. is very important that you learn the foundation of programming first, Variables, Arrays etc.

I would agree that there is a small spin up period to just adjusting to the environment that Java brings with it.

Having an IDE to edit in will save you enormous amounts of time - I highly recommend IntelliJ by JetBrains. This is mainly because it will handle the operations of maintaining a JVM container. Think of this as the world your code lives in.

Once you've created a project in IntelliJ.. you only need one snippet to get you going :

public static void main(String[] args) {
// your logic goes here
}

For example:

public static void main(String[] args) {
System.out.println("Enter your username: ");
Scanner scanner = new Scanner(System.in);
String username = scanner.nextLine();
System.out.println("Your username is " + username ".");
}

The output when you run the program:

Enter your username: Your username is <whateverYouTyped>.

Once you have a grasp of general Object Oriented Programming - the other languages just become a matter of understanding syntax.

Stick with it, I highly suggest you research the "Four Pillars of OOP" and SOLID concepts. Keeping your code clean & DRY (Don't Repeat Yourself) is key.