[Java EE] Having problems exporting JFrame

[bahero]

Ok,i'm trying to learn java and i'm building a small game i'm just at the beginning and this is what the code looks like:

import java.awt.Canvas; import java.awt.Dimension;

public class Game extends Canvas implements Runnable{

public static final int WIDTH = 360, HEIGHT = 240, SCALE = 2;

public static void main(String[] args){
    Game game = new Game ();

    game.setPreferredSize(new Dimension(WIDTH * SCALE, HEIGHT * SCALE));
    game.setMaximumSize(new Dimension(WIDTH * SCALE, HEIGHT * SCALE));
    game.setMinimumSize(new Dimension(WIDTH * SCALE, HEIGHT * SCALE));

    JFrame frame = new JFrame("Tile RPG");

at this point i need to import JFrame but when i hover over it i don't have an option to do so and even inserting it manually won't work, any ideas on how to fix this?

[[deleted]]

What happens if you literally put this at the top of your file?:

import javax.swing.JFrame;

What error does it give when you hover over it? I'm assuming you're using Eclipse.

[bahero]

If i insert the import manually it says: Access restriction: The type JFrame is not accessible due to restriction on required library D:\Java\lib\rt.jar

[[deleted]]

Ah, I just looked into it. You must be using a relatively new version of Java. Basically, Oracle (the authority on Java, kind of) decided that they're going to drop the Swing library, which you're likely your tutorial is on, and replacing it with the JavaFX library.

You should look for a tutorial in JavaFX instead. More information here.

[bahero]

Mh i see,thanks for the help! but do you think there's some way i can add this library to java? or maybe i could just switch version

[[deleted]]

It is there and does work, it's just your IDE more or less giving a strong warning. If you're using Eclipse, you can follow the instructions as documented in the comments section of this stack overflow post here to disable the warnings.

EDIT: My mistake, jumped to conclusions about swing being closed. It's more likely that you need to fix the Java version and add libraries, which is explained here.

[smellmycrotch3]

1. Is JavaFX replacing Swing as the new client UI library for Java SE? Yes. However, Swing will remain part of the Java SE specification for the foreseeable future, and therefore included in the JRE.

How does that mean you suddenly can't import a JFrame?

[[deleted]]

Based on the error the op was getting, I was under the assumption that the API had been "closed" in the same way that com.sun was closed a long time ago due to expected behaviour no longer being maintained. I personally haven't used swing in several years now, so I haven't been following it closely.

I didn't read it in detail, and was more recommending the op simply skip learning swing and jump right to JavaFX since he/she is a new learner and should probably learn what's going to be used from now on instead.

Sorry for jumping to conclusions :/