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Android - Round to 2 decimal places [duplicate]
...someone show me how to round double, to get value that I can display as a
String and ALWAYS have 2 decimal places?
2 Answe...
How to transform array to comma separated words string? [duplicate]
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You're looking for implode()
$string = implode(",", $array);
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Using a string variable as a variable name [duplicate]
I have a variable with a string assigned to it and I want to define a new variable based on that string.
3 Answers
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How to convert a date string to different format [duplicate]
I need to convert date string "2013-1-25" to string "1/25/13" in python.
I looked at the datetime.strptime but still can't find a way for this.
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无法将类型“System.Collections.Generic.List<string>”隐式转换为...
List<string> list = new List<string>();
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ArrayList al = new ArrayList();
al.AddRange(list);复制代码如果单纯转换为对象数组，直接调用 list.ToArray() 方法。
BLE UUID是对的但连接闪退：java.lang.IllegalArgumentException: UUID str...
...ZygoteInit.java:1013)
Caused by: java.lang.IllegalArgumentException: UUID string too large
at java.util.UUID.fromStringJava11(UUID.java:238)
at java.util.UUID.fromString(UUID.java:226)
at edu.mit.appinventor.ble.BluetoothLEGattAttributes.<clinit>(BluetoothLEGattAttributes.java:33)
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Java Map equivalent in C#
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You can index Dictionary, you didn't need 'get'.
Dictionary<string,string> example = new Dictionary<string,string>();
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example.Add("hello","world");
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Console.Writeline(example["hello"]);
An efficient way to test/get values is TryGetValue (thanx to Earwicker):
if (ot...
dismissModalViewControllerAnimated deprecated
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The word modal has been removed; As it has been for the presenting API call:
[self presentViewController:vc animated:NO completion:nil];
The reasons were discussed in the 2012 WWDC Session 236 - The Evolution of View Controllers on iOS Video. Essentially, view controllers presented by this API...
Read stream twice
...you can do like this:
public class StreamTest {
public static void main(String[] args) throws IOException {
byte[] bytes = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
InputStream originalStream = new ByteArrayInputStream(bytes);
byte[] readBytes = getBytes(originalStream, 3);
prin...
MongoDB aggregation framework match OR
...n' }] }
Like so, since the $match operator just takes what you would normally put into the find() function
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