Java isn't recognizing my constructor

Question

Java can't seem to find my constructor, I have no idea whats wrong. Is there a problem with having the throuws InterruptedException? Any Help would be appreciated, Thanks!

    package gameloop;

    import javax.swing.*;

    public class GameLoop extends JFrame {
        private boolean isRunning;
        public int drawx = 0;
        public int drawy = 0;

        public void GameLoop() throws InterruptedException{   
            setSize(700, 700);
            setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            setLocationRelativeTo(null);
            setVisible(true);

            while(isRunning){
                doGameUpdate();
                render();
                Thread.sleep(1);
                if (isRunning){
                    GameLoop();
                }
            } 
        }

        private void doGameUpdate() {
            GameUpdate GU = new GameUpdate();
        }

        private void render() {
            Draw dr = new Draw();
        }

       public static void main(String[] args) {
            GameLoop GL = new GameLoop();
        }
    }

Remove the void. A constructor does not have a return type. — Sotirios Delimanolis
– Sotirios Delimanolis, Commented Sep 11, 2013 at 0:31
You should also move the update/render loop out of the constructor and into its own function, as well as remove the infinite recursion from the update/render loop. — Eric Brown
– Eric Brown, Commented Sep 11, 2013 at 15:55

Jan Dörrenhaus · Accepted Answer · 2013-09-11 00:39:04Z

6

A constructor is named exactly like its class, and has no return type. If you provide a return type, even void, you create a method called GameLoop. What you are looking for is

public GameLoop()

rather than

public void GameLoop()

edited Sep 11, 2013 at 0:39

answered Sep 11, 2013 at 0:31

Jan Dörrenhaus

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Comments

Scary Wombat · Accepted Answer · 2013-09-11 00:31:25Z

4

You need public GameLoop() constructors don't have return types

answered Sep 11, 2013 at 0:31

Scary Wombat

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2 Comments

user2766847 Over a year ago

Thanks for the initial help! I got the window to show up, but now I'm getting new errors. In my Draw and Update Classes both of the line "public class draw extends GameLoop" and "public class GameUpdate".

Scary Wombat Over a year ago

best to create a new question

Óscar López · Accepted Answer · 2013-09-11 00:31:54Z

4

That's not a constructor - this is:

public GameLoop() throws InterruptedException

A constructor can not have a return type (void in your code), if you add one, Java will interpret it it as a normal method - even if it's called exactly like the class!

answered Sep 11, 2013 at 0:31

Óscar López

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Comments

LeandreM · Accepted Answer · 2013-09-11 00:32:22Z

3

You constructor has a return type so it is treated as any other method

answered Sep 11, 2013 at 0:32

LeandreM

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