This question already has answers here:
Why is my keyboard messed up in Eclipse?
(10 answers)
Closed 3 years ago.
I am having a strange problem with Eclipse. The problem is that
For some keyboard keys, the output value printed on screen is different from actual value of that key. e.g. When I press # key, it prints £ sign instead. Similarly when i try quotes key " , the # is printed instead.
Outside the eclipse, the keys work fine.
I think u should change your keyboard settings. It may be in any other english version type.
Related
This question already has answers here:
How do I compare strings in Java?
(23 answers)
Closed 4 years ago.
So, I'm trying to do something really simple, and that's check if a password equals something in my SWT application. So, my code was this:
if (passwordBox.getText() == "test") {
passwordBox.setVisible(false);
}
However, in my application, which uses text fields marked as passwords (with that variable), it will not fire that when I click a button. I already have button handling working, since I have an else statement that fires, but this will not fire when the password box obviously equals "test". What's wrong here?
Strings are always compared by equals().
if(("test").equals(passwordBox.getText())) {
passwordBox.setVisible(false);
}
This question already has answers here:
How do I compare strings in Java?
(23 answers)
Closed 4 years ago.
I am reasonably experienced with programming, but not specifically in Java. I am coming across the following error when working in eclipse. My code is the following:
I have used the debug function, and it reports that carbonPrefix is pent, but that carbon stays at 0 throughout. Like I said, I am a novice to Java and Eclipse, so I may not be using the debug function to it's full extent.
For anybody that's interested, this the start of code where you input the name of an alkane and it tells you the formula. It worked in Javascript and I'm just trying to translate it into Java.
Thank you all so much!
you have to use
carbonPrefix.equals("pent");
in java == operator used to compare two object references and the method equals() is used to compare two strings to determine whether they are equal or not.
This question already has answers here:
how to make jtextfield only accept characters in netbeans
(3 answers)
Check if String contains only letters
(17 answers)
Closed 5 years ago.
I am using Java NetBeans. I want that if a user enters numeric value in text field of "Name", it must show an error using dialog box. How do I do it?
This question already has answers here:
How to get the user input in Java?
(29 answers)
Closed 6 years ago.
I am an AP Computer Science student who is trying to write a console-based text editor. My teacher taught me how to read input using Scanner(System.in), but in a text-editor, you need to get input directly from the keyboard. How do I gain access to keystrokes without using the Scanner class, or a similar parallel? For example, BufferReader(new InputStreamReader(System.in))
EDIT: My point was how read without waiting for user to press enter (otherwise users couldn't add text in real time)
EDIT: Why are you saying my question is a duplicate of that question? I explicitly asked for a method of getting input without waiting fo ruser to press enter. The answers to that other question do not resolve that at all!
You can use this :
System.out.print("Please enter your String :\t");
String sentence = scanner.nextLine();
This question already has answers here:
Convert String to KeyEvents
(16 answers)
Closed 7 years ago.
I need a way to do what is described in the first answer to this question: Type a String using java.awt.Robot
Only I would like to avoid using the clipboard. Is there a generic way to do it without?
(Other answers to the question address printing some hard-coded keys, but they don't help me print "Hello, world!")
You can use javax.swing.KeyStroke to transform the characters in your string into keycodes. For each key code, call Robot.keyPress(...), Robot.keyRelease(...) as you are doing in your previous question