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list.clear() vs list = new ArrayList(); [duplicate]
... might be faster to make a new ArrayList.
http://www.docjar.com/html/api/java/util/ArrayList.java.html
public void clear() {
modCount++;
// Let gc do its work
for (int i = 0; i < size; i++)
elementData[i] = null;
size = 0;
}
...
Determine which JAR file a class is from
...ion of the class file itself. For example:
jar:file:/jdk/jre/lib/rt.jar!/java/lang/String.class
file:/projects/classes/pkg/MyClass$1.class
The getProtectionDomain().getCodeSource().getLocation() method returns the location of the jar file or CLASSPATH
file:/Users/home/java/libs/ejb3-persisten...
How can I make my custom objects Parcelable?
...ee my warnings.
Hrisey
Warning!
Hrisey has a known issue with Java 8 and therefore cannot be used for Android development nowadays.
See #1 Cannot find symbol errors (JDK 8).
Hrisey is based on Lombok. Parcelable class using Hrisey:
@hrisey.Parcelable
public final class POJOClass im...
How to inject dependencies into a self-instantiated object in Spring?
...ence how the autowiring happens: static.springsource.org/spring/docs/3.0.x/javadoc-api/org/…
– Sean Patrick Floyd
Sep 28 '10 at 14:29
...
Is it possible to ping a server from Javascript?
...try this:
put ping.html on the server with or without any content, on the javascript do same as below:
<script>
function ping(){
$.ajax({
url: 'ping.html',
success: function(result){
alert('reply');
},
error: function(resul...
Is there an Eclipse line-width marker?
...I need to wrap every code line at 65 characters. I have set up the eclipse Java code formatter properly for this. But what I really want is a vertical line to be drawn in the editor showing where the max line width while I am typing, not just when I run the formmater. I know this feature is availabl...
How can I unstage my files again after making a local commit?
...use "git reset HEAD <file>..." to unstage)
#
# modified: foo.java
#
# Changes not staged for commit:
# (use "git add <file>..." to update what will be committed)
# (use "git checkout -- <file>..." to discard changes in working directory)
#
# modified: foo.java
#...
javax.faces.application.ViewExpiredException: View could not be restored
...
Introduction
The ViewExpiredException will be thrown whenever the javax.faces.STATE_SAVING_METHOD is set to server (default) and the enduser sends a HTTP POST request on a view via <h:form> with <h:commandLink>, <h:commandButton> or <f:ajax>, while the associated vie...
Is there a way to get rid of accents and convert a whole string to regular letters?
...
Use java.text.Normalizer to handle this for you.
string = Normalizer.normalize(string, Normalizer.Form.NFD);
// or Normalizer.Form.NFKD for a more "compatable" deconstruction
This will separate all of the accent marks from th...
How to remove unused imports from Eclipse
... it's also quite helpful do define a save-action for this. Preferences->Java->Editor->Save Actions
– oers
Apr 17 '11 at 12:05
2
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