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How to get the last value of an ArrayList
...implemented with head and tail references. Is there a similar mechanism in Java?
– Brady
Oct 13 '14 at 9:18
26
...
Can we instantiate an abstract class?
...th your classes. Suppose you put those classes in two different files:
My.java:
abstract class My {
public void myMethod() {
System.out.print("Abstract");
}
}
Poly.java:
class Poly extends My {
public static void main(String a[]) {
My m = new My() {};
m.myMet...
How to decompile an APK or DEX file on Android platform? [closed]
...ecompile an APK file.
Dex2jar - Tools to work with android .dex and java .class files
ApkTool - A tool for reverse engineering Android apk files
JD-GUI - Java Decompiler is a tools to decompile and analyze Java 5 “byte code” and the later versions.
for more how-to-use-dextojar. H...
How do synchronized static methods work in Java and can I use it for loading Hibernate entities?
...
"the whole class" is not locked. The Java machine language specification: For a class (static) method, the monitor associated with the Class object for the method's class is used. For an instance method, the monitor associated with this (the object for which the...
UTF-8 byte[] to String
... And if checkstyle says: "Illegal Instantiation: Instantiation of java.lang.String should be avoided.", then what?
– Attila Neparáczki
Oct 29 '14 at 8:58
1
...
Underscore vs Double underscore with variables and methods [duplicate]
... you WILL regret it later.
Explanation:
People coming from a C++/Java background are especially prone to
overusing/misusing this "feature". But __private names don't work the
same way as in Java or C++. They just trigger a name mangling whose
purpose is to prevent accidental namespac...
What is BSON and exactly how is it different from JSON?
... Does that means, if i retrieve data from BSON document using Javascript, i won't get any datatype difference as i'll get when i retrieve using C/C++ i.e. numbers will be treated as integers if it doesn't have any decimal?
– abhisekp
Jan 19 '14 at ...
Using switch statement with a range of value in each case?
In Java, is it possible to write a switch statement where each case contains more than one value? For example (though clearly the following code won't work):
...
Regular expression for floating point numbers
.... and [0-9] instead of \d to avoid escaping issues in some languages (like Java).
Thanks to the nameless one for originally recognizing this.
One relatively simple pattern for matching a floating point number is
[+-]?([0-9]*[.])?[0-9]+
This will match:
123
123.456
.456
See a working exampl...
Simplest way to serve static data from outside the application server in a Java web application
I have a Java web application running on Tomcat. I want to load static images that will be shown both on the Web UI and in PDF files generated by the application. Also new images will be added and saved by uploading via the Web UI.
...