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What are the best use cases for Akka framework [closed]
I have heard lots of raving about Akka framework (Java/Scala service platform), but so far have not seen many actual examples of use cases it would be good for. So I would be interested in hearing about things developers have used it succesfully.
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Shiro vs. SpringSecurity [closed]
I have currently evaluating Java based security frameworks, I am a Spring 3.0 user so it seemed that SpringSecurity would be the right Choice, but Spring security seems to suffer from excessive complexity, it certainly does not seem like it is making security easier to implement, Shiro seems to be m...
Eclipse doesn't highlight references anymore
...e you mean is configured by navigating to:
Window -> Preferences -> Java -> Editor -> Mark Occurrences
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Design Patterns: Factory vs Factory method vs Abstract Factory
...e usually called within Template Methods.
And also if possible, any java examples related to these patterns?
Factory and FactoryMethod
Intent:
Define an interface for creating an object, but let sub classes decide which class to instantiate. Factory Method lets a class defer instantiat...
Jackson JSON custom serialization for certain fields
...xception {
jsonGenerator.writeObject(tmpInt.toString());
}
}
Java should handle the autoboxing from int to Integer for you.
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Google Guice vs. PicoContainer for Dependency Injection
... - Spring can be slow. There has been work to make it faster and using the JavaConfig library should speed things up.
Ease of use
Pico - Simple to configure. Pico can make some autowire decisions for you. Not clear how it scales to very large projects.
Guice - Simple to configure, you just add annot...
Algorithm to return all combinations of k elements from n
...
Short java solution:
import java.util.Arrays;
public class Combination {
public static void main(String[] args){
String[] arr = {"A","B","C","D","E","F"};
combinations2(arr, 3, 0, new String[3]);
}
st...
How to declare and add items to an array in Python?
...
In some languages like JAVA you define an array using curly braces as following but in python it has a different meaning:
Java:
int[] myIntArray = {1,2,3};
String[] myStringArray = {"a","b","c"};
However, in Python, curly braces are used to def...
Does a “Find in project…” feature exist in Eclipse IDE?
...jects
For specific expression searches, choose the relevant tab (such as Java Search which allows you to search for specific identifiers)
For whole project search:
3. Scope (in the form section) > Enclosing project (Radio button selection).
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Use String.split() with multiple delimiters
...acter in regex means any character other than new line. tutorialspoint.com/java/java_regular_expressions.htm In this case, however, they wanted the actual character .. The two backslashes indicate that you are referring to .. The backslash is an escape character.
– Monkeygrinde...