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How do I check if a file exists in Java?
...ng an NFS file system there is an issue with stale file handles: bugs.java.com/bugdatabase/view_bug.do?bug_id=5003595 It's kind of obscure, but has been the cause of some frustrating bugs in production code before.
– CAW
Mar 17 '17 at 22:17
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What is the size of ActionBar in pixels?
...use
?android:attr/actionBarSize
or if you're an ActionBarSherlock or AppCompat user, use this
?attr/actionBarSize
If you need this value at runtime, use this
final TypedArray styledAttributes = getContext().getTheme().obtainStyledAttributes(
new int[] { android.R.attr.acti...
SQL Server - transactions roll back on error?
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What does T&& (double ampersand) mean in C++11?
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Draw line in UIView
...Path(context); before CGContextMoveToPoint(...);?
– i_am_jorf
Nov 9 '11 at 18:38
37
Using a view ...
Reset auto increment counter in postgres
...duct_id_seq (that is, ${table}_${column}_seq).
This is the ALTER SEQUENCE command you need:
ALTER SEQUENCE product_id_seq RESTART WITH 1453
You can see the sequences in your database using the \ds command in psql. If you do \d product and look at the default constraint for your column, the nextv...
Shell command to sum integers, one per line?
I am looking for a command that will accept (as input) multiple lines of text, each line containing a single integer, and output the sum of these integers.
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Prototypical inheritance - writing up [duplicate]
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JavaScript doesn't have a private modifier.
I agree with the following: http://blog.millermedeiros.com/a-case-against-private-variables-and-functions-in-javascript/ and personally have not used them.
You can indicate to other programmers a member is meant to be private by naming it _aPrivate or ...
Is there a difference between x++ and ++x in java?
...
public class Y extends java.lang.Object{
public Y();
Code:
0: aload_0
1: invokespecial #1; //Method java/lang/Object."<init>":()V
4: return
public static void main(java.lang.String[]);
Code:
0: iconst_2 // Push int constant `2` onto the operand stack.
1: istor...
Get current time as formatted string in Go?
...g/time/#Constants It is the time "01/02 03:04:05PM '06 -0700" Because each component has a different number (1, 2, 3, etc.), it can determine from the numbers what components you want.
– newacct
May 5 '11 at 6:38
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