BaseDemo | basic template that can be used for creating demos | Frontend Framework library
kandi X-RAY | BaseDemo Summary
kandi X-RAY | BaseDemo Summary
BaseDemo is just a basic template that can be used for creating demos for your development projects. It also works great for GitHub Pages. This is an example of what you could do with this template and some content types. Author URI: Online Demo:
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of BaseDemo
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QUESTION
ANSWER
Answered 2019-Oct-01 at 05:26Change this line:
private Random randomNumbers;
to this:
private Random randomNumbers = new Random();
Your code is assuming the the Random object will be allocated like the other member variables, but it is an object and must be created with new.
QUESTION
I'm trying to learn Java from a Udemy course and I was asked to create an assignment before moving into the following sections.
The assignment is to write a JavaFX application that displays a circle and a button and every time said button is pressed the circle should be moved to random locations.
So far I have create a code that counts how many times I have clicked the button, now I would like to move the circle along with the counting:
...ANSWER
Answered 2019-Sep-19 at 18:43Try it yourself first, but I'll post a solution so that you can see how it is done, in case you get stuck.
- Create a random in your application init method
- Where you increase the click count, get a couple of ints using
random.nextInt(bound)
from the random. - Set circle
centerX
andcenterY
to your random values. - Done.
OK, well not quite done, the problem you will find when you try it (which you should) is that it won't work, the circle won't seem to center on the x and y values you set. This is because the Circle is in a layout pane (FlowPane), which will ignore your manual layout settings (though not translate values). The solution is to put the circle in the Group (as the first item, so that it is under everything), then put the flow pane in the group, and in the FlowPane you have your button and click counter.
You might wish to reserve translateX/Y for animation not for layout, though it could be used to move shapes around and is also OK to use for that reason.
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