Java Programming Tutorial - 63 - JButton Final Program

Finally we get top run and see our JButtons!

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[WhiteyMcCrackers]

IF YOUR GETTING "Exception in thread "main" java.lang.NullPointerException at javax.swing.ImageIcon.init(Unk­­nown Source) at Gui.init(Gui.java:31) at apples.main(apples.java:7)" ERROR Move Your Picture To Bin And Not Src!!!

THUMBS UP SO OTHER PEOPLE KNOW!

[mihek]

Microsoft would never buy this..... it does not contain any bugs, that's not their style...

[kripis0]

CLASSCEPTION!

[KitsMinecraftMusic]

@WhiteyMcCrackers Dont worry, image was the wrong size >.<

[KitsMinecraftMusic]

@WhiteyMcCrackers I've tried placing the images in the bin folder, but it still does not work...

What else could i try? The code is perfect :/

[rimzouz]

@WhiteyMcCrackers thx man

[MrYouMath]

@MrYouMath Now you can create an instance of your class hero called Cloud

hero Cloud = new hero(100,20);

You can also create another hero. eg.Tifa

hero Tifa = new hero(80,30);

I hope you see what its good for:). The constructor just creates an instanc(new hero(). If you like it can create an instance with initialising variables (new hero(100,20);). Its very important that the constructor is public and its name has to be the name of the class.

[MrYouMath]

@franchyze922 A constructor is something like a initialiser. if you create an instance of an object, then you mostly want to initialise your variables(members). E.g. you have a class called hero,with the variables hp and mp, for your game. And you want to create a hero instance called Cloud with hp = 100 and mp = 20. To not always assign these values you create a constructor e.g.:

public hero(int health, int magicpoints){ hp = health; mp = magicpoints;

}

[franchyze922]

can somebody please explain a constructor!??

[MrFufuMalanga]

a class inside a class?!?! CLASSCEPTION!!!

[TheViolinCalamity]

@mihek Bethesda would buy it too...

[TheViolinCalamity]

@mihek Do you have a mac then? :P