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Cannot Find Symbol Method Addkeylistener

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Well sorry guys, I'm just learning, trying to write my first java application, don't take things for granted all the time. That was much easier than I thought. –Jan Hoi Feb 7 '15 at 15:06 add a comment| up vote 0 down vote Try importing KeyEvent class like: import android.view.KeyEvent; Or use How often should I replace windscreen wiper blades? Reply With Quote 11-04-2010,07:39 PM #13 Johanis Senior Member Join Date Oct 2010 Posts 139 Rep Power 0 Thanx you soooo much!! weblink

Mimsy were the Borogoves - why is "mimsy" an adjective? Join them; it only takes a minute: Sign up cannot find symbol, keyEvent constants java up vote 0 down vote favorite I've created a Map containing a KeyEvent constant as key StackOverflow gave me the following code to do so: @Override public boolean dispatchKeyEvent(KeyEvent event) { int action = event.getAction(); int keyCode = event.getKeyCode(); switch (keyCode) { case KeyEvent.KEYCODE_VOLUME_UP: if (action == Why "silver-tongued" for someone who is convincing? http://stackoverflow.com/questions/23477051/java-keylistener-doesnt-work-cannot-find-symbol

Cannot Find Symbol Method Addkeylistener

Browse other questions tagged java keyboard awt keylistener keyevent or ask your own question. My cat sat on my laptop, now the right side of my keyboard types the wrong characters Why did Borden do that to his wife in The Prestige? As Bayan pointed out, you could get rid of this error by changing the current constructor to accept a String parameter Java Code: //Constructor public Calculator(String param1) { super(); //... This can be due to three reasons: 1.

import java.awt.Graphics; import javax.swing.JPanel; import java.awt.Color; public class pongoperations extends JPanel { int widthofgraphicalarea; int heightofgraphicalarea; final int ballradius = 8; int ballxcoordinate; double ballycoordinate; int paddle1xcoordinate; int paddle1ycoordinate; int paddle2xcoordinate; Are “la malplej juna” and “la plej maljuna” entirely interchangeable? But to solve your problem after paddlehandler = new PaddleHandlerClass(); add: graphicalpanel.addKeyListener(paddlehandler); the problem is you never added the KeyListener to any Component to listen for events. if (inputString.indexOf(".") < 0) setDisplayString(new String(inputString + ".")); } void processSignChange(){ if (displayMode == INPUT_MODE) { String input = getDisplayString(); if (input.length() > 0 && !input.equals("0")) { if (input.indexOf("-") == 0)

to your classpath. Java Keylistener Example Zener diodes in glass axial package - not inherently shielded from photoelectric effect? What, exactly, is a prophet of java? http://stackoverflow.com/questions/28383439/cannot-resolve-symbol-keyevent I have two classes: Driver.java and DisplayPanel.java Driver.java code : package csHW9; import javax.swing.JFrame; import csHW9.DisplayPanel; public class Driver { public static void main(String[] args){ JFrame frame = new JFrame("Dungeon Diver");

Sorry, I'm still learning Reply With Quote 11-04-2010,05:05 PM #6 Johanis Senior Member Join Date Oct 2010 Posts 139 Rep Power 0 I pasted the code you gave me in the How to delete the lines from a file that do not contain dot? Related 3681Is Java “pass-by-reference” or “pass-by-value”?0Java cannot find symbol compile error0java import “cannot find symbol”14Java POI cannot find symbol WorkbookFactory2Error: Cannot find symbol (java)2Java: “error: cannot find symbol”2Compile error in java Join them; it only takes a minute: Sign up Why isn't the keyListener working?

Java Keylistener Example

The error is: Calculator.java:569: cannot find symbol symbol : constructor Calculator() location: class Calculator Calculator calci = new Calculator(); ^ 1 error Reply With Quote 11-04-2010,05:32 PM #7 Eranga Moderator Join http://stackoverflow.com/questions/13770185/why-isnt-the-keylistener-working Browse other questions tagged java events or ask your own question. Cannot Find Symbol Method Addkeylistener row1.add(createButton(VK_DEAD_TILDE, "~")); row1.add(createButton(VK_1, "1")); row1.add(createButton(VK_2, "2")); ... }//end of constructor private void createButton(int keyCode, String name){ newButton = new JButton(name); mp.put(keyCode, newButton); } Unfortunately the compiler complains about the constants, here Why would a creationist claim Java Man, the first discovery of Pithecanthropus erectus, is a hoax?

You can only upload photos smaller than 5 MB. have a peek at these guys by looking at the error you can see that in your Calculator class, at Line 569, you are instantiating a Calculator object using a constructor that requires no parameters. The proper solution would be KeyBindings which would change your PaddleHandlerClass like this: private class PaddleHandlerClass { public PaddleHandlerClass(JComponent jc) { jc.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(KeyStroke.getKeyStroke("UP"), "up"); jc.getActionMap().put("up", new AbstractAction() { @Override public void actionPerformed(ActionEvent asked 1 year ago viewed 1272 times active 1 year ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Related 824R cannot be resolved - Android error1The dynamic rows dont

Im still in school, so i'll at highest be able to put 3-6 hours of work into it a day.? 7 answers Use python code to hack? 8 answers Terms Privacy why do i need to update it? –gtboy Nov 12 '12 at 4:33 | show 5 more comments Your Answer draft saved draft discarded Sign up or log in Sign On 1941 Dec 7, could Japan have destroyed the Panama Canal instead of Pearl Harbor in a surprise attack? check over here Why can issuing the same command create more output in tty than in pts/gnome-terminal?

Any suggestions? On 1941 Dec 7, could Japan have destroyed the Panama Canal instead of Pearl Harbor in a surprise attack? your code here } If you try to instantiate an instance of a class by using a constructor that doesn't exist, you will get the errors you have been seeing.

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Thanks in advance! Please upload a file larger than 100x100 pixels We are experiencing some problems, please try again. Why do languages require parenthesis around expressions when used with "if" and "while"? Polyglot Anagrams Robbers' Thread Zener diodes in glass axial package - not inherently shielded from photoelectric effect?

Why did Borden do that to his wife in The Prestige? Complement of CFL is Recursive more hot questions question feed lang-java about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life Skyrim: How to stop NPCs from picking up dropped items How to clear all output cells and run all input cells Should I allow my child to make an alternate meal http://pgexch.com/cannot-find/java-cannot-find-symbol-method.html This is the code from MainActivity.java import android.app.ProgressDialog; import android.content.Intent; import android.util.Log; import android.view.InputEvent; import android.net.Uri; import android.os.AsyncTask; import android.os.Bundle; import android.support.v7.app.ActionBarActivity; import android.view.View; import android.widget.AdapterView; import android.widget.Button; import android.widget.ListView; import

Where to take phone interview while at work How can I take a powerful plot item away from players without frustrating them? KeyListener doesn't have an addKeyListener method, obviously, it doesn't make sense to add a keylistener to itself, so that's why you're getting this error. I do not understand where to paste it: I tried it and it wouldn't work. And thank you for all your help!!

Is there still a way to prevent Trump from becoming president? The class name is misspelled in one of the source files Make sure you have the two classes in the same directory before you compile and that the Object is the What is the point of update independent rendering in a game loop? Posted By MS-POWER (5 replies) Yesterday, 11:08 PM in New To Java Trying to find if there are a...

Can Trump undo the UN climate change agreement? This won't work unless you find an object that has an addKeyListener() method to add an instance of eventTester to.