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i'm trying code breakout games libgdx , box2d. there 1 point don't understand. there must 2 bricks touch edge. on emulator saw 2 bricks nested. here's createbox method's code: private void createbox(float posx, float posy, float boxw, float boxh) { bodydef bodydef = new bodydef(); bodydef.type = bodydef.bodytype.staticbody; bodydef.position.set(posx, posy); body body = world.createbody(bodydef); polygonshape shape = new polygonshape(); shape.setasbox(boxw, boxh); fixturedef fixturedef = new fixturedef(); fixturedef.shape = shape; fixturedef.density = 1f; fixture fixture = body.createfixture(fixturedef); shape.dispose(); } edit: multiplied code. createbox(cons_holder.bricks_left_margin + (i * cons_holder.brick_width * 2 ), cons_holder.brick_top_screen_margin + (j * cons_holder.brick_height * 2 ) + cons_holder.bricks_top_margin, cons_holder.brick_width / 2, ...

i took snipet site explaining handler in android (a threading thing). @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_main); thread mythread = new thread(new runnable() { @override public void run() { (int = 0; < 4; i++) { try { timeunit.seconds.sleep(2); } catch (interruptedexception e) { e.printstacktrace(); } if (i == 2) { muihandler.post(new runnable() { @override public void run() { toast.maketext(myactivity.this, "i @ middle of background task", toast.length_long) .show(); } ...

i have snippet of code in change css dynamically based on values being greater 0. value of '0' class = 'cart-summary__count'. value greater '0' class = 'cart-summary__count_full'. <span class="cart-summary__count" data-v-observable="cart-count">0</span> <span class="cart-summary__count" data-v-observable="cart-count">1</span> *edit: <div id="cart-summary"> <span class="cart-summary__count" data-v-observable="cart-count">0</span> <a href class="cart">example.com</a> </div> change to: <a href class="cart-full">example.com</a> i still learning js , appreciated. cart value can change on page when adding item. please use code $(document).ready(function() { $("span").each(function(){ if (parseint($(this).text()) > 0){ $(this).removeclass(...

this question has answer here: optional parameters “must compile-time constant” 8 answers i using default parameters i'm getting error default parameter value 'regularexpression' must compile time constant here method signature: public static pipe.datatypes.buyflow.entities.question getemailaddressquestion(string regularexpression = regularexpressions.emailaddressregex, int rank = 1, bool isrequired = true) { } and here property: public static string emailaddressregex { { string emailaddressregex = @"^[a-za-z0-9\._%\+\-]+@([a-za-z0-9\-]{1,40}\.)+([a-za-z0-9]{2,4}|museum)$"; return emailaddressregex; } } it error message says. default parameters have constants (at compile time). the getter of emailaddressregex return different values during runtime. same value not known compiler. ...

my code mbluetoothadapter = bluetoothadapter.getdefaultadapter(); if (mbluetoothadapter != null) { // device not support bluetooth if (!mbluetoothadapter.isenabled()) { intent enablebtintent = new intent(bluetoothadapter.action_request_enable); startactivityforresult(enablebtintent, 10); }else{ set<bluetoothdevice> paireddevices = mbluetoothadapter.getbondeddevices(); // if there paired devices if (paireddevices.size() > 0) { // loop through paired devices (final bluetoothdevice device : paireddevices) { // add name , address array adapter show in listview //marrayadapter.add(device.getname() + "\n" + device.getaddress()); devname = device.getname(); devadd = device.getaddress(); if(!devname.isempty()) { ...

i want fill column userform. user has 4 options how column can filled. problem right know is, first option works (2). input-mask wont disappear after click ok-button. chosen option should copied column h , filled automatically. mistakes? private sub commandbutton1_click() ' ok button dim emptyrow range dim lastrow long lastrow = cells.specialcells(xlcelltypelastcell).row worksheets("sheet1").activate set emptyrow = worksheets("sheet1").range("h2:h" & lastrow) if optionbutton2.value = true emptyrow.value = "2" if optionbutton3.value = true emptyrow.value = "3" if optionbutton4.value = true emptyrow.value = "4" if optionbutton5.value = true emptyrow.value = "5" end if end if end if end if end sub give shot.. biggest difference here how if statement written. original code had if statements nested in ea...

i using, same problem, code given in question yii2 create database connection . i realise $config variable no longer 1 in web.php file, "config" folder, , changing $config in configuration::setconfig() function. my question more experienced me in yii should write in web.php file in db field (or in db.php file) "create database connection programmatically without using config file" ? in function configuration::setconfig() configure application? i'm sorry if question not clear enough. please ask details in comments if needed. thank you! you can define new connection way $db = new yii\db\connection([ 'dsn' => 'mysql:host=localhost;dbname=example', 'username' => 'root', 'password' => '', 'charset' => 'utf8', ]); , $db->open(); after db connection established, 1 can execute sql statements following eg: : $command = $db->createcomm...