eventqueue

Why do people run Java GUI's on the Event Queue

六月ゝ 毕业季﹏ 提交于 2019-11-28 11:11:47
In Java, to create and show a new JFrame , I simply do this: public static void main(String[] args) { new MyCustomFrameClass().setVisible(true); } However, I have seen many people doing it like this: public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { new MyCustomFrameClass().setVisible(true); } }); } Why? Are there any advantages? The rules governing what needs to be performed on the EDT (I see "EDT" more often used than "Event Queue") have changed during Java's lifetime. And everytime the "rules" changed, Sun advised doing more and more "GUI

understanding the node.js event queue and process.nextTick

廉价感情. 提交于 2019-11-27 16:37:00
问题 I'm having trouble understanding exactly how process.nextTick does its thing. I thought I understood, but I can't seem to replicate how I feel this should work: var handler = function(req, res) { res.writeHead(200, {'Content-type' : 'text/html'}); foo(function() { console.log("bar"); }); console.log("received"); res.end("Hello, world!"); } function foo(callback) { var i = 0; while(i<1000000000) i++; process.nextTick(callback); } require('http').createServer(handler).listen(3000); While foo is

Why do people run Java GUI's on the Event Queue

流过昼夜 提交于 2019-11-27 06:00:47
问题 In Java, to create and show a new JFrame , I simply do this: public static void main(String[] args) { new MyCustomFrameClass().setVisible(true); } However, I have seen many people doing it like this: public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { new MyCustomFrameClass().setVisible(true); } }); } Why? Are there any advantages? 回答1: The rules governing what needs to be performed on the EDT (I see "EDT" more often used than "Event Queue")

How to replace the AWT EventQueue with own implementation [closed]

非 Y 不嫁゛ 提交于 2019-11-26 05:00:52
In order to debug strange behavior in a Swing-application I'd like to replace the AWT EventQueue with my own implementation. Is this possible? How? Just in case you are interested: the implementation will be a simple wrapper around the normal Eventqueue, doing some logging. the problem I'd like to debug is a TableCellEditor, which works fine in a little demo app, but when put in the real application, stopCellEditing gets called immediately, due to some event. I'd like to get access to the event in order to find out, where it is comming from. EventQueue has a method called push() that will do

How to replace the AWT EventQueue with own implementation [closed]

杀马特。学长 韩版系。学妹 提交于 2019-11-26 03:25:25
问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 5 years ago . In order to debug strange behavior in a Swing-application I\'d like to replace the AWT EventQueue with my own implementation. Is this possible? How? Just in case you are interested: the implementation will be a simple wrapper around the normal Eventqueue, doing some logging. the

DOM event precedence

扶醉桌前 提交于 2019-11-26 02:19:16
问题 What order of precedence are events handled in JavaScript? Here are the events in alphabetical order... onabort - Loading of an image is interrupted onblur - An element loses focus onchange - The user changes the content of a field onclick - Mouse clicks an object ondblclick - Mouse double-clicks an object onerror - An error occurs when loading a document or an image onfocus - An element gets focus onkeydown - A keyboard key is pressed onkeypress - A keyboard key is pressed or held down