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Futuristic GUI in Java?

First of all sorry for my english, it's not my mother tongue.
I want to made a program in java, i was thinking that it will look great with a futuristic graphical user interface. When i say "futuristic", i mean something like this:
I know it's the image of an Android application but i'd like to do something like this in a java program.
Usually when i have to do GUIs in java i use Swing components, but now i need to personalize everything, and i'd also like that when i click "Send" for example the circle becomes bigger and other things appears inside it.
So i need to have a complitely personalized and animated GUI. Which is the best way to do it? Swing, Awt, JavaFx or what else?
Thank you in advance.

Consider to use JavaFX. It supports styling via CSS, has APIs for effects, animations etc. and can work with the graphic card.
Swing is currently in maintenance mode and JavaFX is the new proposed (by Oracle) standard Java GUI toolkit for Java.

You could extend JComponent for every different component you want and then override the paint(Graphics g) method. Then you just draw on g object like on any other graphics object.

Java - Image Opacity

I have been making a video using pure Java. I would like to put in a pop-up menu for players when every they hit ESC. I have the menu setup but it looks really quite ugly. I would like to make the menu blur the image behind it.
For example on the new iOS 7 on Apple devises a lot of the things like the dock blur to whatever is behind it. There is an example of what I am trying to achieve below!

The simplest solution would be to use something JXLayer, as it will allow you to apply filter effects to the components that it covers.
For example.

How to make iGoogle like UI using java swing

I am developing desktop GUI application using java swing. And I want to show several "subwindow" on the same window(JFrame). And I want the layout is similar to iGoogle such that user can add and remove new subwindow. To be simple, I assume all the "subwindows" have the same size and similar content(all are showing chart). By the way, the maximum number of "subwindow" would not be a huge number. I think it is less than 8.
if there is no drag and drop, can I just use grid layout to
implement it?
if there is drag and drop, what is the easy way to
do it?
Thank You very much.
FYI: iGoogle http://www.google.com.hk/ig

I don't know what iGoogle is, but it sounds like you should be using internal frames. See the section from the Swing tutorial on How to Use Internal Frames.

If all the "sub windows" will be equal size and not draggable, I'd just use a simple layout. seems like a good case to use TableLayout. In a simple case where you know the max amount of slots, you could have 8 corresponding JPanels and add them to Container using the table layout (making sure to revalidate()) as the user requests them. if a user closes one, you just remove it from the container and revalidate. Hope that helps. if you don't need docking functionality, don't even go down that road is my advice.
EDIT:
you could also still implement drag and drop by using your own mouse handlers.

Drag and drop widgets in Java 2D

Is there any material/tutorials available that can shed some light on creating drap and drop widgets with Java 2D? I am not talking about drag and drop data transfer like here. What I want to do is have a visual pane in my application, where users can create widgets, connect them to each other etc. Something like a creating a graph, but with widgets that have properties.
Thanks.

This is generally works like this:
When a user presses the mouse button your application goes to a "drag" mode
When repaint() method is called while you're in drag mode you move your widget position to the coordinates of the cursor
When mouse button is released you fixate the ultimate position of the windget.
The simple illustration for this might be a program I was writing in my youth - interactive chess board. Here is relevant class that includes pieces dragging capabilities http://jinyan.svn.sourceforge.net/viewvc/jinyan/trunk/jinyan/client/src/net/sfficslecview/lvboard/EditableChessBoard.java?revision=77&view=markup

I have found the perfect solution. I can make use of the Netbeans Visual Library by extracting jar from the Netbeans Platform.

How to display image in Swing? in textarea?

I am creating a chat application using JApplet. I have a TextArea where all chat messages go. Everything in working fine and smooth just as you would expect a basic chat application to do. Now i want to add support for gestures. I wanted to know, how can we show an icon in TextArea? it only takes string in append() method.

You should probably be looking at JTextPane instead of JTextArea.
Have a look at this tutorial which among other things, gives this demo: