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[RiokuTheSlayer]

Hey all,got a simple question here.

Basically,i'd like to know if there's a way to just call a class,or a section of a class,to make multiple versions of it.

I.E.

I want to be able to click somewhere,and just make a square out of one class,then click somewhere else and make a second version of the same class.

Specifically,i'm making a Bee Game(Don't ask) And I need to be able to make multiple bees on-screen at once. I know how to make one at a time,but i just need to be able to click and make a second/third/ect.

If there's no just calling one spot,then how?

Thanks for the help

~RiokuTheSlayer

[jim829]

Yes. But I believe the problem would be that you can't alter the constructors. One approach would be to make a class with a private constructor so it can't be instantiated. Then have a static method which simply returns an array or list of multiple instances of the class.

Regards,
Jim

[RiokuTheSlayer]

XD I have no idea what you just said(Still relatively new). Could you give me a short example?

[jim829]

class Foo {
   private Foo(<constructor arguments here>) {
      // initialize
   }
   
   public static List<Foo> createInstances(int count, <constructor arguments>) {
        List<Foo> fooList = new ArrayList<>();
        while (count-- > 0) {
            fooList.add(new Foo(<constructor arguments>);
        }
        return fooList;
    }
}


// Usage

List<Foo> myList = Foo.createInstances(10, <constructor arguments>);

Regards,
Jim

[RiokuTheSlayer]

Um,it keeps asking me to turn List<foo> to ArrayList<foo>

That OK? Or does it need to be List?

[Junky]

Have you imported List?

[jim829]

I did make a mistake in the code by not giving count a type (since corrected). However, that was the only problem. It should not complain about return a type of List<Foo>. Make a FooTest class with main in it and try it again. Don't forget to code real constructor args. Keep it small and post your code if you need help.

Regards,
Jim

[RiokuTheSlayer]

Oh,I'm in java 1.6..... I should probably switch to 1.7 XD

[jim829]

I keep forgetting to ask them that. My IDE (Eclipse) does it for me.

Regards,
Jim

[RiokuTheSlayer]

Mine does to,but i heard something about Java 1.7 rendering being much harder,so i didn't want to risk having to re-write all my code. It's my bad,i didn't mention it.

[RiokuTheSlayer]

Still asking to turn List<> into ArrayList<> ,or remove the <Foo>,Says something about not being Generic.

[RiokuTheSlayer]

Okay,what you told me didn't work in the slightest. Keeps asking me to take away <Foo> From the Array, no matter what I do. Apparently it's something wrong with what you wrote,since it won't even work on a brand new project in the most recent java version.

Any other ways?

[Junky]

What IDE are you using? Even though you may have the latest Java version installed, an earlier version might be used for your project. Right click on the project (usually in the left hand pane) and go through the properties to see what version is actually being used.

[RiokuTheSlayer]

Java SE 1.7,I'm using Eclipse.

[jim829]

The problem may be the instance construct.

List<Foo> fooList = new ArrayList<>(); // java 1.7+
List<Foo> fooList = new ArrayList<Foo>(); // pre-java 1.7

I checked it out and it works as advertised.

Regards,
Jim

[RiokuTheSlayer]

Ok,lemmie check again.

[RiokuTheSlayer]

This is what i get,and i also attached a crop of the Project,which shows that i'm using Slick & LWJG,and Java 1.7. Is there a way of using slick?

[RiokuTheSlayer]

( I did remove Constructor Arguments since there are none.)

[jbarke12]

Did you have the import for the List?

import java.util.ArrayList;
import java.util.List;

/**
 *
 * @author jbarke12
 */
public class Testfor {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        List<Bat> bats= new ArrayList<>();
        bats.add(new Bat());
    }

    private static class Bat {

        public Bat() {
        }
    }
    
    public static List<Bat> getBats(){
    List<Bat> bats= new ArrayList<>();
    return bats;
    }
}

[RiokuTheSlayer]

-_-

"import java.awt.List;"

well,thanks for that,eclipse. Love you to.