event-handling

I have this JTable having a DefaultTableModel as its model. On the table I have several swing component, JComboBox and JCheckBox , set on a particular column via DefaultCellEditor and DefaultCellRenderer . The TableModelListener was added to the table to capture changes on editable columns. The rest of the columns will display details of the selected component, i.e. item code -> item price, item count, item classification,etc. I have this problem wherein if the selectedItem of the JComboBox(itemCode) changes, the items of the other JComboBox(itemClassification) changes. But together with the

While working on an answer for another question, a strange bug came up related to the event object being available in an anonymous function without being passed in. In Chrome the below works fine, but FF throws an error. $(document).ready(function() { $("#uspsSideboxTrackingClose").click(function() { event.preventDefault(); console.log(event); }); }); Chrome: FireFox: ReferenceError: event is not defined It is already known that $("#uspsSideboxTrackingClose").click(function(event) { .. } works in both browsers. Here is the offending code. Is this a bug with Chrome or FF, or intended behavior

So the problem that I am having appears to be a bug that occurs only on Linux. I'm trying to have my swing app record when a key is pressed down, then to detect when that key is released. Now that shouldn't be in issue because KeyListener is supposed to handle this for me. The problem is that when I hold the key down I get lots of repeated keyPressed()/keyReleased() events instead of just the single keypressed(). Does anyone have a solution or workaround for knowing when a key is really released on linux? Thank you. So the problem that I am having appears to be a bug that occurs only on Linux

Let's say I have some variable defined using the statement int someVariable; . While the code runs, the variable's value changes. How can I track the changes in this variable? How could I implement some Listener that behaves like onSomeVariableChangedListener? I also need to know when some other method in one page has been executed so I can set a Listener in another class. This is one of the many reasons to hide variables behind setter/getter pairs. Then in the setter you can notify your listener that this variable has been modified in the appropriate way. As the others have commented, there

How to find event handlers on an object in jQuery 1.8+? var func = function(){ alert(1); }; var obj = $('#obj'); obj.on("click", func); // obj.data('events') is undefined Use the data function as is done by jQuery internally . On previous versions, you could call it like for other data : obj.data('events'); In jQuery 1.8, this direct access was removed , so in recent versions you must call it like this : $._data(obj[0], "events") You can see it in action by opening the console in this fiddle : http://jsfiddle.net/8TpeP/2/ to find event handlers of an element in jQuery 1.8+ you've got to do

Yesterday I had an issue where a .on('click') event handler I was assigning wasn't working right. Turns out it's because I was was trying to apply that .on('click') before that element existed in the DOM, because it was being loaded via AJAX, and therefore didn't exist yet when the document.ready() got to that point. I solved it with an awkward workaround, but my question is, if I were to put a <script> tag IN the ajax loaded content and another document.ready() within that, would that second document.ready() be parsed ONLY once that ajax content is done being loaded? In other words, does it