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How to design a database for User Defined Fields?
...columns for fieldname or tablename is storing metadata identifiers as data strings, and that's the start of a lot of the problems. Also see en.wikipedia.org/wiki/Inner-platform_effect
– Bill Karwin
Mar 3 '11 at 16:51
...
Python, Unicode, and the Windows console
When I try to print a Unicode string in a Windows console, I get a UnicodeEncodeError: 'charmap' codec can't encode character .... error. I assume this is because the Windows console does not accept Unicode-only characters. What's the best way around this? Is there any way I can make Python autom...
Python 2.7 getting user input and manipulating as string without quotations
I want to get a string from a user, and then to manipulate it.
8 Answers
8
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What does the “yield” keyword do?
...i)
0
1
4
Everything you can use "for... in..." on is an iterable; lists, strings, files...
These iterables are handy because you can read them as much as you wish, but you store all the values in memory and this is not always what you want when you have a lot of values.
Generators
Generators ar...
Why does this method print 4?
...t execution if you'd prefer-
static int cnt = 0;
public static void main(String[] args) {
try {
main(args);
} catch (Throwable ignore) {
cnt++;
try {
System.out.println(cnt);
} catch (Throwable t) {
}...
How to save a PNG image server-side, from a base64 data string
...rt canvas drawings to PNG images.
What I need now is to turn those base64 strings that this tool generates, into actual PNG files on the server, using PHP.
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Extension · App Inventor 2 中文网
...ives the url which started this activity/screen if there is any else empty string
Methods
GetStartUrl()
Returns the url which started the current activity
ClientSocketAI2Ext
TCP Socket 客户端扩展。
该组件用于主动连接...
Custom Adapter for List View
... class MyCustomAdapter extends BaseAdapter {
private ArrayList<String> mData = new ArrayList<String>();
private LayoutInflater mInflater;
public MyCustomAdapter() {
mInflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
...
Remove last character from string. Swift language
How can I remove last character from String variable using Swift? Can't find it in documentation.
22 Answers
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How to start an Intent by passing some parameters to it?
...ivity
Intent myIntent = getIntent(); // gets the previously created intent
String firstKeyName = myIntent.getStringExtra("firstKeyName"); // will return "FirstKeyValue"
String secondKeyName= myIntent.getStringExtra("secondKeyName"); // will return "SecondKeyValue"
If your parameters are ints you w...