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Examples of GoF Design Patterns in Java's core libraries
...ognizeable by creational methods returning the instance itself)
java.lang.StringBuilder#append() (unsynchronized)
java.lang.StringBuffer#append() (synchronized)
java.nio.ByteBuffer#put() (also on CharBuffer, ShortBuffer, IntBuffer, LongBuffer, FloatBuffer and DoubleBuffer)
javax.swing.GroupLayout.G...
Hidden features of Ruby
...
If items is a string you don't have to enclose it with [*…]. String.each doesn't iterate over characters as some may expect. It just returns itself to the block.
– mxcl
Feb 17 '10 at 13:49
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Is short-circuiting logical operators mandated? And evaluation order?
...nt after the evaluation of the first expression (12).
In C++ there is an extra trap: short-circuiting does NOT apply to types that overload operators || and &&.
Footnote 12: The operators indicated in this paragraph are the built-in operators, as described in clause 5. When one of thes...
What's invokedynamic and how do I use it?
...mple would be something like:
Compiled from "Range.java"
public java.lang.String toString();
descriptor: ()Ljava/lang/String;
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
0: aload_0
1: invokedynamic #18, 0 // InvokeDynamic #0:toString:(LRange;...
Android notification is not showing
...ome obsoletes
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
{
String channelId = "Your_channel_id";
NotificationChannel channel = new NotificationChannel(
channelId,
"Channel human readable title",
...
On select change, get data attribute value
... guess would be that data() is faster than attr() because attr() has to do extra work to figure what type of attribute it is. Just a guess tho.
– dev_willis
Mar 19 at 18:48
ad...
Main differences between SOAP and RESTful web services in Java [duplicate]
...
advantages of REST web services are:
Lightweight - not a lot of extra XML markup Human Readable Results
Easy to build - no toolkits required. SOAP also has some advantages:
Easy to consume - sometimes Rigid - type checking, adheres to a
contract Development tools For consuming...
How do you uninstall MySQL from Mac OS X?
...empt to install from source.
./configure --prefix=/usr/local/mysql --with-extra-charsets=complex \
--enable-thread-safe-client --enable-local-infile --enable-shared \
--with-plugins=innobase
share
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Java GUI frameworks. What to choose? Swing, SWT, AWT, SwingX, JGoodies, JavaFX, Apache Pivot? [close
...course you can integrate your custom controls as well, but that takes some extra effort.
share
edited Sep 9 '11 at 12:50
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LINQ Ring: Any() vs Contains() for Huge Collections
...re properties. With .Contains you can just compare objects and you need an extra IEqualityComparer to compare properties.
– msfanboy
Feb 4 '11 at 20:23
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