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MySQL COUNT DISTINCT

...unction () { StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f5737628%2fmysql-count-distinct%23new-answer', 'question_page'); } ); P...
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Notifier 通知扩展:功能强大的Android通知管理工具,支持通知通道、意图、...

...fications 2.8 (2021-06-13) LauncherIntent 中的 FlagNewTask 属性被忽略但Android 10需要FlagNewTask 属性的默认值更改为 true 2.9.1 (2022-10-13) 适配SDK31(Android 12):所有 PendingIntent 获得 FLAG_IMMUTABLE 标志请求 android.per...
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Convert ArrayList to String[] array [duplicate]

... Use like this. List<String> stockList = new ArrayList<String>(); stockList.add("stock1"); stockList.add("stock2"); String[] stockArr = new String[stockList.size()]; stockArr = stockList.toArray(stockArr); for(String s : stockArr) System.out.println(s); ...
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Is it possible to have multiple styles inside a TextView?

... wondering how to do this, here's one way: (Thanks to Mark again!) mBox = new TextView(context); mBox.setText(Html.fromHtml("<b>" + title + "</b>" + "<br />" + "<small>" + description + "</small>" + "<br />" + "<small>" + DateAdde...
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printf with std::string?

...e and typesafe. In fact, when you're writing C++, you generally want to avoid printf entirely -- it's a leftover from C that's rarely needed or useful in C++. As to why you should use cout instead of printf, the reasons are numerous. Here's a sampling of a few of the most obvious: As the question...
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How to listen for a WebView finishing loading a URL?

...iewClient and call onPageFinished() as follows: mWebView.setWebViewClient(new WebViewClient() { public void onPageFinished(WebView view, String url) { // do your stuff here } }); share | ...
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How to fix: android.app.RemoteServiceException: Bad notification posted from package *: Couldn't cre

...e of KitKat, the problem was resolved when I replaced the XML with PNG in: new NotificationCompat.Builder(context, CHANNEL_ID).setSmallIcon(R.drawable.my_icon) – Andrew Glukhoff Jun 3 '18 at 18:46 ...
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MySQL Select all columns from one table and some from another table

... Please don't answer unless you are adding something new. (Especially 8 year old questions with very highly upvoted/adequate answers.) – philipxy Oct 25 '18 at 0:27 ...
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Paste multiple columns together

... # columns to paste together cols <- c( 'b' , 'c' , 'd' ) # create a new column `x` with the three columns collapsed together data$x <- apply( data[ , cols ] , 1 , paste , collapse = "-" ) # remove the unnecessary columns data <- data[ , !( names( data ) %in% cols ) ] ...
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Else clause on Python while statement

... answered Jul 21 '10 at 2:51 arsars 99.7k2121 gold badges130130 silver badges129129 bronze badges ...