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Java Cannot Find Symbol Keyevent

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import java.awt.event.*; import java.lang.*; public class eventTester implements KeyListener{ public eventTester(){ addKeyListener(this); //This is where i am getting the error } public static void main(String [] args){ eventTester ev = new The rest to Red for (int i=0; ihttp://tcsmacs.net/cannot-find/java-cannot-find-symbol-ant.php

This was the little snippet of code I posted above. Trending What is the best programming language to start with? 16 answers While loop help? 16 answers How can I create a website that is completely free? 12 answers More questions Posted By tech-ebooks (0 replies) 11-07-2016, 04:05 PM in Reviews / Advertising Re: Best Book to Learn Java? Alternating Fibonacci How to decline a postdoc interview if there is some possible future collaboration? http://stackoverflow.com/questions/23477051/java-keylistener-doesnt-work-cannot-find-symbol

Cannot Find Symbol Method Addkeylistener

GO OUT AND VOTE Do the Leaves of Lórien brooches have any special significance or attributes? import java.awt.*; import javax.swing.*; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.awt.EventQueue; public class MainFrame extends JPanel implements Runnable { int diaPad = 120; long delay = 20; private int xx = 120; arg0) { helper = new XMLHelper(); helper.get(); postValueArrayList = helper.getPostsList(); return null; } @Override protected void onPostExecute(Void result) { PostBaseAdapter postBaseAdapter = new PostBaseAdapter(MainActivity.this, postValueArrayList); lvPcsPost.setAdapter(postBaseAdapter); pd.dismiss(); } } } Anyone java events share|improve this question asked Oct 30 '15 at 15:16 sami 74 Well where are you expecting it to get the VK_DEAD_TILDE symbol (etc) from? –Jon Skeet Oct

Ballpark salary equivalent today of "healthcare benefits" in the US? Copyright 2006 - 2015, Java Programming Forum 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. 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

asked 2 years ago viewed 1272 times active 2 years ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Related 0Java KeyEvent and KeyListener-2Java keyListener-1KeyListener stop working with Action or Java Keylistener Example So I added this Pad that I want the user to be able to move around. Mimsy were the Borogoves - why is "mimsy" an adjective? What legal documents are Italian citizens supposed to carry when traveling to Ireland?

How can I undrawn previous polygon on image? Reply With Quote 11-04-2010,09:12 PM #19 Johanis Senior Member Join Date Oct 2010 Posts 139 Rep Power 0 Originally Posted by StormyWaters Look at your main method inside the Caculator class... Why can issuing the same command create more output in tty than in pts/gnome-terminal? Ballpark salary equivalent today of "healthcare benefits" in the US?

Java Keylistener Example

How can an advanced (circa 7000 AD) spacefaring human civilization be prevented from entering its own solar system? You need to do one of the following: Change the places where you instantiate the Calculator objects to now pass a String parameter. Cannot Find Symbol Method Addkeylistener 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 How often should I replace windscreen wiper blades?

You can only upload photos smaller than 5 MB. my review here Couldn't find the answer on google btw –sami Oct 30 '15 at 15:42 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Yes No Sorry, something has gone wrong. 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

I do not understand where to paste it: I tried it and it wouldn't work. share|improve this answer edited Jan 8 '14 at 18:44 answered Jan 8 '14 at 18:37 Reimeus 123k9102167 add a comment| up vote 1 down vote Your KeyEvent variable is "e" not 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 click site Lab colleague uses cracked software.

How to delete the lines from a file that do not contain dot? Lone.java:439: cannot find symbol symbol : constructor Calculator(java.lang.String) location: class Calculator Calculator cal = new Calculator("Java Swing Calculator"); ^ ...you see that in your Calculator class, at Line 439, you are Is deleting Java a good idea to avoid viruses?

Reason: code tags added Reply With Quote 11-03-2010,08:40 PM #4 bayan Member Join Date Apr 2010 Posts 55 Rep Power 0 Ah now I see it.

Do humans have an ethical obligation to prevent animal on animal violence? Last edited by Johanis; 11-04-2010 at 06:11 PM. Anyway, this is my code for the pad. Join them; it only takes a minute: Sign up Cannot resolve symbol KeyEvent up vote 1 down vote favorite I really cannot find the answer for this problem on the internet.

Why is (a % 256) different than (a & 0xFF)? Since there is no Calculator constructor created which accepts only a String parameter, it gives you the error. Not the answer you're looking for? navigate to this website Why "silver-tongued" for someone who is convincing?

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Do you perhaps know why that is? –user3045711 Jan 8 '14 at 18:40 Then what does this mean , in your question ?? Or set CD to .. Key Listeners require component focus in order to work. Not the answer you're looking for?

Since you probably just changed your old constructor to accept a String parameter, this is no longer valid. Reply With Quote 11-03-2010,08:21 PM #2 bayan Member Join Date Apr 2010 Posts 55 Rep Power 0 Could you please post the calculator class? By AliceNewbie in forum New To Java Replies: 1 Last Post: 02-17-2010, 02:44 AM cannot find symbol By GabWit in forum New To Java Replies: 3 Last Post: 01-25-2009, 01:13 AM Since you're not calling it on anything explicitely, the compiler will look locally for the method.

Couldn't find the answer on google btw –sami Oct 30 '15 at 15:42 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using You can only upload files of type PNG, JPG, or JPEG. The part of the program: private void SakrekenaarMouseClicked(MouseEvent e) { Calculator cal = new Calculator("Java Swing Calculator"); } The error: Lone.java:439: cannot find symbol symbol : constructor Calculator(java.lang.String) location: class Calculator 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

Mimsy were the Borogoves - why is "mimsy" an adjective? This won't work unless you find an object that has an addKeyListener() method to add an instance of eventTester to. java find syntax-error scope symbol share|improve this question edited Nov 12 '12 at 4:37 asked Nov 12 '12 at 4:23 gtboy 951312 1 Add .. Is there still a way to prevent Trump from becoming president?

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.