Χρόνια: The Scanner class in java is a new util class that was added to Java 1.5.This class is really useful for handling input from a user.The Scanner class can do all that a BufferedReader classdo with same efficiency.But there…
How to create UML diagram from existing java application (reverse engineering)?
Χρόνια:There are several FREE/licensed plugins(tools) available in the market for creating UML diagram from existing java application (reverse engineering).I will describe one plugin which can be used on eclipse.Other plugins are almost similar in use.I will describe ‘EclipseUML’ plugin (http://www.omondo.com/)…
Are multiple inheritances possible in java?
Ένα: No, multiple inheritance is not possible in java. Interface has been introduced to serve the purpose and it has been derived from Objective C.The reasons for omitting multiple inheritances from the Java language mostly stem from the ‘simple, αντικείμενο…
How memory is managed in java?
Ένα: Let me describe how memory is managed in java. In Java manual memory allocation and de-allocation has been eliminated. Memory in Java is automatically garbage collected so you never have to worry about memory corruption. Java memory is managed…
What is Drools exception handling
Let us describe Drools exception handling in details. In Drools, the default exception handler is known as “Consequence Exception Handler”. It provides minimum information like the following. ένα) Ο κανόνας β) Όταν η εξαίρεση έγινε γ) Η αιτία με…
What is memory map file in java?
Χρόνια :αρχείο χάρτη μνήμης στη Java είναι μια έννοια χαμηλό επίπεδο για να κάνει το αρχείο I / O πιο αποτελεσματικά. Generally we use stream or buffer stream to do file I/O. Αν και ρυθμισμένο ρεύμα χρησιμοποιείται ευρέως για την αύξηση της απόδοσης της εισαγωγής αρχείου…
What is Fork/Join framework in java 7.0 (Parallel programming)?
Fork/Join framework has been introduced in java 7 to solve multi-threading/parallel programming issues. It is very difficult to deal with concurrent (parallel) programming by using traditional way. Because you have to deal with thread synchronization, notification, join etc and also…
What is Executor framework in java?
The Executor Framework has been introduced in Java 1.5 and it is a part of java.util.concurrent package. The Executor framework is an abstraction over the actual implementation of java multithreading. It is used for standardizing invocation, scheduling, execution and control…
What are the architectures for drools and web application integration?
Χρόνια : Let me describe the architectures for drools and web applications. The integration architecture can be defined in two main categories a) Drools as embedded in the web application. Drools can be implemented as an internal component in the…
What is the diffrence between jBPM and drools rule engine?
The main difference diffrence between jBPM and drools rule engine is that jBPM is a process/wrok flow engine and Drools is a rule engine.Both of them can be used together.
What is Cloud Computing?
Χρόνια: Let me describe Cloud Computing in details so that you can have a clear understanding.I believe most of us have heard the name ‘CLOUD COMPUTING’.But what does it mean? First of all, why the name is so? Let me…
What is Big data and Hadoop?
Χρόνια: Data is considered as Big data when you fail to manage it efficiently. Now a days storage is become cheap and it will be cheaper in future, which means it has become easy to collect mountains of data. Αλλά…
What is Voice browsing?
The future of web browsing is Voice browsing. The technology is a rapidly growing field and would be the next INTERNET.The voice revolution can be described as the BIRTH OF NEW INTERNET AGAIN. The simplest way to understand the voice…
