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Why cannot cast Integer to String in java?
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No. Every object can be casted to an java.lang.Object, not a String. If you want a string representation of whatever object, you have to invoke the toString() method; this is not the same as casting the object to a String.
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How to append a newline to StringBuilder
...System.getProperty("line.separator") gives you system-dependent newline in java. Also from Java 7 there's a method that returns the value directly: System.lineSeparator()
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Mail multipart/alternative vs multipart/mixed
...ine image
inline image
attachment
attachment
And the code is:
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.URLDataSource;
import javax.mail.BodyPart;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.interne...
How to remove elements from a generic list while iterating over it?
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For those coming from Java, C#'s List is like ArrayList in that insertion/removal is O(n) and retrieval via an index is O(1). This is not a traditional linked list. It seems a bit unfortunate C# uses the word "List" to describe this data structure...
OpenJDK availability for Windows OS [closed]
...rsion available to Windows OS? From the OpenJDK home page ( http://openjdk.java.net/ ) it redirects to Oracle Sun JRE for Windows machine.
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Yank file name / path of current buffer in Vim
...ne open. For example:
Start: Editing src/com/benatkin/paint/shapes/Circle.java
Type :let @" = expand("%:p") (The path gets yanked to the main clipboard buffer.)
Open a new window with :sp
Type :e Ctrl+R"
Use the arrow keys to go back to Circle and change it to Square, and press <CR>
End...
What do the plus and minus signs mean in Objective-C next to a method?
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@bbum is on the money. The fact that Java re-appropriated the "static" keyword to mean something different is not the fault of the much-older C. While its usage may not be entirely intuitive in C, it seems even less so in Java. I would expect static to be the op...
Detect URLs in text with JavaScript
... but rather a proof of how to do the string wrapping inside the text, with JavaScript.
OK so lets just use this one: /(https?:\/\/[^\s]+)/g
Again, this is a bad regex. It will have many false positives. However it's good enough for this example.
function urlify(text) {
var urlRegex = /(htt...
What are the differences between a HashMap and a Hashtable in Java?
What are the differences between a HashMap and a Hashtable in Java?
35 Answers
35
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How to ignore SVN folders in WinMerge?
... a new filter or modify an existing one.
It will look like this:
## Ignore Java class and jar files
f: \.class$
f: \.jar$
## Ignore subversion housekeeping directories
d: \\.svn$
d: \\._svn$
Save it, then when selecting items to merge, select the filter you defined from the Select Files or Folders...