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How can I convert a string to a number in Perl?
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Perl really only has three types: scalars, arrays, and hashes. And even that distinction is arguable. ;) The way each variable is treated depends on what you do with it:
% perl -e "print 5.4 . 3.4;"
5.43.4
% perl -e "print '5.4' + '3.4';"
8.8
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How do I remove all non alphanumeric characters from a string except dash?
... can cause performane issues. Here is one solution
char[] arr = str.ToCharArray();
arr = Array.FindAll<char>(arr, (c => (char.IsLetterOrDigit(c)
|| char.IsWhiteSpace(c)
|| c == '-')));
str = new string(arr);
When us...
How do I output text without a newline in PowerShell?
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To write to a file you can use a byte array. The following example creates an empty ZIP file, which you can add files to:
[Byte[]] $zipHeader = 80, 75, 5, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
[System.IO.File]::WriteAllBytes("C:\My.zip", $zipHe...
Android: Generate random color on click?
...ck<>();
recycle =new Stack<>();
recycle.addAll(Arrays.asList(
0xfff44336,0xffe91e63,0xff9c27b0,0xff673ab7,
0xff3f51b5,0xff2196f3,0xff03a9f4,0xff00bcd4,
0xff009688,0xff4caf50,0xff8bc34a,0xffcddc39,
0xffffeb3b,...
How to pass a URI to an intent?
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Arrays works too! i.putExtra("URIList", uriList.toArray()); -> List<Uri> myList = i.getParcelableArrayListExtra("URIList");
– Pierre
Aug 20 '19 at 4:08
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Save modifications in place with awk
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An important caveat here: the 'seen' array will fill up with duplicate lines from ALL the files included in the command. So if each file has e.g. a common header, that will be removed in every file after the first one. If you instead want to treat each file inde...
Getting rid of \n when using .readlines() [duplicate]
...g something like numpy.loadtxt or even numpy.genfromtxt if you need a nice array of the data you're reading from the file.
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How to copy a java.util.List into another java.util.List
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Just use this:
List<SomeBean> newList = new ArrayList<SomeBean>(otherList);
Note: still not thread safe, if you modify otherList from another thread, then you may want to make that otherList (and even newList) a CopyOnWriteArrayList, for instance -- or use a lo...
Difference Between Select and SelectMany
...earn the difference when using LINQ To SQL but all I've found are standard array examples.
17 Answers
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How to change colors of a Drawable in Android?
...you put more than 20 colors.You need insert greather then twenty colors in array because else it crashes with java.lang.ArrayIndexOutOfBoundsException
– AlexPad
Apr 10 '19 at 20:09
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