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New features in java 7
...OutputStream(dest))
{
// code
}
Underscores in numeric literals
int one_million = 1_000_000;
Strings in switch
String s = ...
switch(s) {
case "quux":
processQuux(s);
// fall-through
case "foo":
case "bar":
processFooOrBar(s);
break;
case "baz":
processBaz(s);
...
mongodb: insert if not exists
... This is almost what I want ! How can I not touch the insertion_date field if the object is already present ?
– LeMiz
May 27 '10 at 21:24
28
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Genymotion, “Unable to load VirtualBox engine.” on Mavericks. VBox is setup correctly
...s by installing VirtualBox 4.3.28 (https://www.virtualbox.org/wiki/Download_Old_Builds_4_3). The new 5.0.0 and 4.3.30 versions didn't work for me with Genymotion 2.5. None of the above solutions worked :(
It's also worth noting that at the time of writing, Genymotion's FAQ states the following:
...
Java Reflection: How to get the name of a variable?
...rNames extends java.lang.Object{
TestLocalVarNames();
Code:
0: aload_0
1: invokespecial #1; //Method java/lang/Object."<init>":()V
4: return
LocalVariableTable:
Start Length Slot Name Signature
0 5 0 this LTestLocalVarNames;
public java.lang...
iPhone UITextField - Change placeholder text color
...orUndefinedKey:]: this class is not key value coding-compliant for the key _field.
– i_am_jorf
Apr 9 '14 at 19:27
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AgoraRTC 拓展：App Inventor 2 实时语音与视频通话 · App Inventor 2 中文网
...配。
when Screen1.Initialize() {
AgoraRTC1.Initialize()
}
when 按钮_加入.Click() {
AgoraRTC1.JoinChannel("room-1001", 文本输入框1.Text, 0)
}
when AgoraRTC1.JoinedChannel(channel, uid, elapsed) {
标签_状态.Text = join("已加入：", channel, " / UID=", uid)
}
when AgoraRTC1....
How to store int[] array in application Settings
...
public class MyNumberArray : IEnumerable<int>
{
List<int> _values;
public MyNumberArray() { _values = new List<int>(); }
public MyNumberArray(IEnumerable<int> values) { _values = new List<int>(values); }
public static implicit operator List<int>...
Can't access object property, even though it shows up in a console log
...cess, but on the very next line of code, I can't access it with config.col_id_3 (see the "undefined" in the screenshot?). Can anyone explain this? I can get access to every other property except field_id_4 as well.
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Check list of words in another string [duplicate]
...
if any(word in 'some one long two phrase three' for word in list_):
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WITH CHECK ADD CONSTRAINT followed by CHECK CONSTRAINT vs. ADD CONSTRAINT
...ts. If you disable a constraint with ALTER TABLE foo NOCHECK CONSTRAINT fk_b and then re-enable it with ALTER TABLE foo CHECK CONSTRAINT fk_b it doesn't verify the constraint. ALTER TABLE foo WITH CHECK CHECK CONSTRAINT fk_b is necessary in order to have the data verified.
– ...