Greenfoot

how can I get my gui to popup with all of the jbutton, labesl and textarea etch to show

By divinity, with no replies.

I have created an application for a subway program. I want it to popup to preview how the jlables, jbutton, textarea, jlist and all of the component on it, the codes that I have used it work but the problems are that none of the jbuttons, jlist, textareas, jlables, jcombobox is not showing. for some reason, the gui popping up blank with nothing showing, can somebody take a look at my codes and tell me why it is not showing anything and what i have to do to get it to show. here is the codes. <Code Omitted>

How can I add a picture

By Jhoffi, with 2 replies.
Last reply by danpost, almost 4 years ago:

To set an image to a question, do it the same way as you did questionText or explanation. Use String filename of image. The code given above is only for construction. It has nothing to do with the actual asking and answering of the questions (it only provides the contents of each question). So, setImage and addObject are not used in that block of code.

addObject in Actor class returns null

By Shqxin, with 2 replies.
Last reply by Shqxin, almost 4 years ago:

it works! thanks!

how do i remove an actor

By Toni, with 1 reply.
Replied to by danpost, almost 4 years ago:

Are you calling die() from anywhere?

Text in Greenfoot?

By Jhoffi, with 5 replies.
Last reply by danpost, almost 4 years ago:

You could also do it this way: <Code Omitted>

STAR WARS

By ronald, with 9 replies.
Last reply by danpost, almost 4 years ago:

Any time you make a call from act that (1) could potentially remove the actor from the world and (2) has code beyond the call that requires the actor to be in the world, you should do something like placing the following line after the call: <Code Omitted>

How can I get this program to run properly?

By divinity, with 25 replies.
Last reply by danpost, almost 4 years ago:

divinity wrote...

but all of the names address etc are strings, dont u see that

Of course I see that. Then no problem.

int Letters & Check boolean is true?

By Gabe1098, with 7 replies.
Last reply by Gabe1098, almost 4 years ago:

Super_Hippo wrote...

That seems to be a String. <Code Omitted>int is only used for whole numbers.

Thank you it works!

How can I randomise questions?

By Jhoffi, with 1 reply.
Replied to by Super_Hippo, almost 4 years ago:

Assuming you call that method after a question was answered, you could remove the question out of the ArrayList and then switch to a random remaining one. <Code Omitted> Alternatively, you could shuffle the elements of your array randomly at the beginning of your code.

instantiate new object at specific coordinates

By footsniffer74, with 3 replies.
Last reply by danpost, almost 4 years ago:

footsniffer74 wrote...

growing would be best, its meant to be like a rising sea level

Best might be to use one actor that slowly moves up showing more of its image hiding below the world's edge. Using multiple actors will cause a streaking effect along the bottom edge of the images.

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how can I get my gui to popup with all of the jbutton, labesl and textarea etch to show

How can I add a picture

addObject in Actor class returns null

how do i remove an actor

Text in Greenfoot?

STAR WARS

How can I get this program to run properly?

int Letters & Check boolean is true?

How can I randomise questions?

instantiate new object at specific coordinates