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JavaFX requestFocus() deletes contents of TextField when opening with spacebar

I'm running into an issue with the requestFocus() method. Whenever I click on a link from a VBox table in my application, a details menu drops down indicating username etc which are editable. The problem is, when I open the link in the VBox using the spacebar, JavaFX puts a focus on the TextField, but highlights it. By the time I release the spacebar, the highlighted text is deleted.
Basically, when the TextField is given focus using a spacebar, the entire contents are highlighted and replaced with a space character. Pushing enter to open the link still highlights the text, but doesn't do anything else since it doesn't add any characters.
How do I make sure the text inside a TextField doesn't get highlighted?
Thanks.

The solution for TextField (entire content) doesn't get highlighted is adding the .selectedEnd() after the .requestFocus()
textField.requestFocus();
textField.selectEnd();
However, i'm not really sure for your case that deal with spacebar. Hope this help.

When i navigate to some field using tab and enter some text text getting disappeared?

I have a table of forms which accepts first name, last name etc. When I navigate through using the tab key and enter some text in first name, all of the text disappears and that row gets selected. I have tried almost all techniques.
Is there any way we can avoid that using coding?
If I use the mouse then it wont give that error.

Assuming an otherwise correct use of JTable, you may need to terminate the edit when focus is lost, as suggested here and here:
table.putClientProperty("terminateEditOnFocusLost", true);

JTextArea indentation

I'm having a problem with JTextArea (not a problem though).
I want to create my own college program, one of the function is to write down and save a list of homework each day. It's text area having the main function here, which is to type everything my lecturer said. But text area will act like Windows original notepad, which is not keeping the indentation. So my questions are:
How do I have a function where I press the SHIFT+TAB key it will decrease indentation by one.
If number 1 is possible, then how do my program have behaviour when I press ENTER key, it will have a new line with previous indentation? Just like NetBeans and other IDE.
Edited: I'm a beginner in Java, in truth, I'm making this program while studying Java in my college.

How do I have a function where I press the SHIFT+TAB key it will decrease indentation by one.
You need to use key bindings to listen for the user typing Shift+Tab.
If number 1 is possible, then how do my program have behavior when I press ENTER key, it will have a new line with previous indentation? Just like NetBeans and other IDE.
Use a similar piece of logic to capture the Enter key presses. Then, check the previous line in the editor and count the number of tab characters preceding the text. Output a similar number at the start of the new line.

you could use Javascript/jquery for indenting by inserting empty space of specific line. while pressing your hot key combination call function to insert five spaces on your cursor.

Java GUI input text box

I'm designing a program simulating a vending machine. You know how vending machines have that one large text box that displays whatever messages you need to know...that's what I want to do. So basically, if the user clicks a button and if the item is out of store, expired, they don't have enough credit, whatever, the message should be displayed in this box.
Then, after a second or 2, return to displaying how much money the user put into the machine. I also want to make the box so that, well theres a button next to the text box to click to insert money. When they click that, I want to make the text box editable, they then enter the amount of money they want to enter, then press insert again, and the money is inserted. The text box becomes uneditable again, and displays the credit they have in the machine.
Does anyone have any suggestions as to how to do this?
I also was wondering how I could implement the delay before getting rid of the message and returning to displaying the credit in the machine. Thank you.

As Andrew Thompson says, you would use a JTextField. Set the desired text using the setText() method and you could then use a sleep function (usleep() I think should work for your application) and then set the text again back to the Dollar value.
Edit: didn't see the last half. To enable and disable the textfield entirely, use setEnabled(true/false), to stop it from being editable, use setEditable(true/false)
Also, just thinking, you could get the current date in a timestamp format and then enter a loop where you continually get the timestamp and compare it to the first one. If the desired difference is reached then exit the loop and update the textfield. Have a look at the Java doc for Date ;)

Change color of JButton when selected, & Set mask on JFormattedTextField?

I'm writing my 1st Java program (in Netbeans) and I'm lost. I have 2 questions at the moment, if anyone is kind enough to help me.
Here's what the program is supposed to do:
take 1 of 4 "status" options, plus a 5 digit number (both of these items are entered by a user via a touch-screen monitor) and then email this info to someone with the subject line of: "Item #[5 digit number from JFormattedTextField] is currently [1 of 4 possible status options].
Email command would command after user clicks "enter" button, and then user clicks "OK" on a pop-up which asks user to confirm message about to be emailed. As far as my 3rd question, it's about the e-mailing part, and I figured that would be a another thread after I get this button & text field stuff ironed out.
Here's a picture of the touch screen UI I have so far:
(can't post images as a rookie, go to krisbunda.com/gui.png for this image)
Question #1:
the 4 status options (4 JButtons) are wrapped inside of a JPanel. I want the most recent button to have been pushed in the "statusPanel" JPanel to change the background to blue and the button text to white.
Can I put a mouselistener on the button's parent JPanel to listen for click events on the children (the 4 status JButtons), and then whichever button was last clicked, it will turn blue w/ white text? Please point me in the right direction.
Question #2:
I have a JFormattedTextField named "display" that shows the numbers as they're clicked, which are appended from a StringBuffer named "current". I want the text field to only accept a total of 5 numbers.
When I tried putting a mask of "#####" on the field, it would only chime a warning beep when I pushed the number pad's buttons. Currently I've chosen "Category: number" and "Format: custom" and then typed "#####" in the "Format:" field. This allows me to click number buttons and see their text displayed, but it doesn't stop me from typing more than 5 characters.
I'm doing this through the "Properties> FormatterFactory" dialog box. A screen shot is shown below:
(go to krisbunda.com/text-formatterFactory.png to view this image)
And here's the code I have so far:
(my post was too long with this code, so go to: krisbunda.com/java-sampleCode.txt to view)
Thanks in advance for any help!

Your code looks fine, and you already have fields set up to hold references to all your buttons, so now you just need to write the code inside the status setting buttons and then make them call a subroutine with the new status. This subroutine should then reset all the buttons to their default color and then set the special selected color on the button that corresponds to the new or existing status.
Edit: adding code here in response to your comment...
Firstly, never use == with Strings. You MUST use equals() otherwise when you get two Strings that are identical, but are different objects, they will not be the same and your comparisons will fail.
There are much better ways of coding this up, including using enums etc. but this should work for you:
// Reset all the buttons
outsideNotReadyButton.setBackground(...);
loadedButton.setBackground(...);
outsideReadyButton.setBackground(...);
shippedButton.setBackground(...);
// Now set the one of the button's colors conditionally
String status = ...
if(status.equals("SHIPPED")) {shippedButton.setBackground(Color.BLUE);}
else if(status.equals("LOADED")) {loadedButton.setBackground(Color.BLUE);}
// ...and so on

An ActionListener is the more common approach to buttons, as discussed in How to Use Buttons, etc. A FocusListener, also used in this example, is one way to change a button's appearance in the way you describe.
An sscce showing just your JFormattedTextField problem will be more helpful. Several such examples may be found in the article How to Use Formatted Text Fields.