Tutorial Java – #7 Reference data type variables

In this post it is described one of the most important concepts of Object Oriented Programming: Every class instance, object, is managed only by reference type variables (for those who know also C++, you could remember that in C++ this rule is not entirely true because objects are also managed by value type variables). This […]

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Tutorial Java – #6 Classes and objects

Classes represent the basic principles of object-oriented programming. Classes are abstract concepts, stories, blueprints, describing: characteristics, attributes of an object; these represent what the object knows, what it is; object methods; these represent what the object knows to do, its behavior; Based on classes, the programmer can define something concrete, objects. Thus, by instantiating the […]

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Tutorial Java 6 – #5 Flow control statements

In this post we can see how to implement in Java, the basic flow control structures / statements: decision-making structures: if – then, if – then – else, switch; structures for loop blocks: do-while, while – do, enhanced – for; loop control instructions: break, continue; Using control structures we can write programs for which the […]

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Tutorial Java 6 – #4.3 Matrixes and Multidimensional Arrays

In this post we will see what are and how to define multidimensional arrays. The most common multidimensional array is the matrix – a two dimension array. Despite the fact in our mind a two-dimension array is like a table, a matrix is in Java an array of arrays, like in this image (a two-dimension […]

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Tutorial Java 6 – #4 Arrays

In this topic we will see how we define and process arrays data structures in Java. An array is a particular form of Java object that is used to store a homogeneous list of elements (each element of the vector has the same type as vector type – the base type). The number of elements […]

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Tutorial Java 6 – #2.1 How to write or generate JavaDoc comments

In software programming it is important to document the source code, because: you will have a clear picture of complex Java projects with many classes or modules; you will be able, later, to understand what was done so that you can modify, add or delete it. For Java applications, documentation is usually supplied in HTML […]

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Tutorial Java 6 – #2.2 How to generate JavaDoc in Eclipse or NetBeans

Java source code documentation is represented by JavaDoc projects, which are a collection of HTML pages describing the classes and methods in the code. To generate Javadoc documentation you need a tool from the JDK, javadoc.exe , and comments in the source code written according to strict rules (  ). Because it is more efficient to […]

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Tutorial Java – Contents

This Java tutorial covers all important Java 6 and 7 topics and allows a new programmer to learn the concepts, the know-how and the syntax elements of Java programming language. Also the tutorial highlights important topics for the SCJP certification exam.

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Tutorial Java 6 – #2 Basic concepts

In this post we will see what are the basic rules, the components and the structure of Java programs. Based on what we have learned in Tutorial Java – #1 Prerequisites, it is supposed that you know that:

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Tutorial Excel 2003 – Bara de instrumente pentru formatare

Prelucrarea datelor din registrul de lucru nu se rezumă doar la a aplica diverse funcţii şi formule care să conducă la rezultatele finale. Din cauza numărului mare de date incluse în foia de lucru, utilizatorul este nevoit să evidenţieze anumite zone de date astfel încât să faciliteze citirea şi înţelegerea ulterioară a acestora. Aplicaţia Excel […]

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Tutorial Excel 2003 – Bara de instrumente standard

Cele două bare de instrumente cu grad de utilizare ridicat sunt: bara de instrumente standard (Standard); include funcţii utilizate în gestiunea registrului de lucru curent şi a unor componente din acesta; bara de instrumente de formatare (Formatting); include funcţii utilizate în formatarea registrului de lucru şi a datelor din foile de lucru. Bara de instrumente […]

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Librarie de functii si proceduri pentru lucru cu matrici (masive bidimensionale) in limbajul C si C++ – Diferite prelucrari

Functiile de prelucrare in matrice sunt acele functii care fac diferite operatii matematice, operatii de interschimbare, numarare, modificare, stergere, inlocuire asupra elementelor unei matrice modificând-o in cele mai multe cazuri. Toate aceste functii sunt diferite intre ele, nu numai prin ceea ce fac ele, ci si prin parametrii care ii primesc sau prin valorile returnate. […]

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How to: Implement Interfaces in VB.NET

Implementing an interface in VB.NET is done by specification Implements. Interfaces can be implemented by classes […] and structures […]. A class or structure can implement one or more interfaces, separated by the operator , in VB.NET. List of interfaces implemented by class/structure is given by their associated names at defining time […]. In below […]

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