Month: January 2023

[Solved] @Override error after adding public interface OnTaskCompleted

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According this code you will get null pointer exception. because you have not assign the listener in code. public class saveData extends AsyncTask < List < String > , Void, Void > { private OnTaskCompleted listener; boolean myflag = false; @Override public void onPreExecute() {} @Override protected Void doInBackground(List < String > …params) {} @Override … Read more

[Solved] C. for loop with chars

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This char s[]=”TvNnFs”,*p; where s is an array of characters and p is character pointer, is looks like below s[0] s[1] s[2] s[3] s[4] s[5] s[6] —————————————— | T | v | N | n | F | s | \0 | —————————————— s 0x100 0x101 0x102 0x103 0x104 0x105 0x106.. (assume 0x100 is base … Read more

[Solved] Can I use ‘,’ instead of ‘as’ python 3

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The old syntax is no longer valid. Source In Python 2, the syntax for catching exceptions was except ExceptionType:, or except ExceptionType, target: when the exception object is desired. ExceptionType can be a tuple, as in, for example, except (TypeError, ValueError):. This could result in hard-to-spot bugs: the command except TypeError, ValueError: (note lack of … Read more

[Solved] Can Windows Script Host run a .js file [closed]

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Presumably, the goal is to edit the JavaScript file. Open your prefered editor. e.g. Visual Studio Code, Sublime Text, Atom or Brackets. Pick “Open” from the “File” menu Pick your JS file from the dialog At some point you may wish to configure your file manager (e.g. Windows Explorer or macOS Finder) to open JS … Read more

[Solved] SQL: Column invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause [closed]

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Introduction SQL is a powerful language used to query and manipulate data stored in databases. It is important to understand the syntax and structure of SQL queries in order to ensure that the query is valid and produces the desired results. One common issue that can arise when writing SQL queries is the error “Column … Read more

[Solved] generating grammars from a language (formal languages and automata theory)

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Introduction Generating grammars from a language is an important concept in formal languages and automata theory. It involves the process of constructing a grammar that is capable of generating all and only the strings of a given language. This process is useful for understanding the structure of a language and for designing algorithms that can … Read more

[Solved] I want to achieve something like multiple circularimageview’s overlapping each other, just like the google plus community page [closed]

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Take the imageview 100X100 its all about the layout margin: You can use margin like this: <FrameLayout android:layout_width=”match_parent” android:layout_height=”wrap_content” > <de.hdodenhof.circleimageview.CircleImageView android:layout_width=”100dp” android:layout_height=”100dp” android:layout_gravity=”center” android:layout_marginRight=”100dp” android:src=”https://stackoverflow.com/questions/43046074/@drawable/samplepic” /> <de.hdodenhof.circleimageview.CircleImageView android:layout_width=”100dp” android:layout_height=”100dp” android:layout_gravity=”center” android:layout_marginRight=”50dp” android:src=”https://stackoverflow.com/questions/43046074/@drawable/samplepic” /> <de.hdodenhof.circleimageview.CircleImageView android:layout_width=”100dp” android:layout_height=”100dp” android:layout_marginLeft=”100dp” android:layout_gravity=”center” android:src=”https://stackoverflow.com/questions/43046074/@drawable/samplepic” /> <de.hdodenhof.circleimageview.CircleImageView android:layout_width=”100dp” android:layout_height=”100dp” android:layout_marginLeft=”50dp” android:layout_gravity=”center” android:src=”https://stackoverflow.com/questions/43046074/@drawable/samplepic” /> <de.hdodenhof.circleimageview.CircleImageView android:layout_width=”100dp” android:layout_height=”100dp” android:layout_gravity=”center” android:src=”https://stackoverflow.com/questions/43046074/@drawable/samplepic” /> </FrameLayout> … Read more

[Solved] Subset and filter not giving proper answer

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Since your column C1 is numeric, you should not use quotes. Try this: subset(KL, C1 > 300) ID C1 1 A 597.69 3 C 601.30 4 D 4052.60 15 O 354.12 But note that you should use caution with subset() – this will not always do what you think it does. It’s better to use … Read more

[Solved] Java How to display string like this [closed]

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try this: public class Main { public static void main(String args[]) { Scanner sc = new Scanner(System.in); String text = sc.nextLine(); System.out.println(text); for(int j=0;j<text.length();j++) { char firstLetter = text.charAt(0); //get the first letter text = text.substring(1); //remove the first letter from the input string text = text + firstLetter; System.out.println(text); } } } 4 solved … Read more

[Solved] how to convert Date in to Feb 26, 2016 in java [duplicate]

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import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; public class Main { public static void main(String[] args) throws ParseException { String theInDate = “2/20/2016”; String theInFormat = “MM/dd/yyyy”; String theOutFormat = “MMM dd, yyyy”; final SimpleDateFormat theSdfInputFormatter = new SimpleDateFormat(theInFormat); final SimpleDateFormat theSdfOutputFormatter = new SimpleDateFormat(theOutFormat); final Date theDate = theSdfInputFormatter.parse(theInDate); final String theDateText = theSdfOutputFormatter.format(theDate); System.out.println(theDateText); … Read more