Software and Systems: Types, Development, and UML Diagrams
Software and Systems
Main Categories
- Center: SOFTWARE
- Left: SOFTWARE APPLICATION – Performs information processing tasks for end-users.
- Left/Left: GENERAL-PURPOSE APPLICATION PROGRAMS
- Left/Right: SPECIFIC APPLICATION PROGRAMS
- Center Right: SOFTWARE SYSTEMS – Manages and supports operations of network computing systems.
- Right/Left: PROGRAM MANAGEMENT SYSTEMS
- Right/Right: SYSTEMS DEVELOPMENT PROGRAMS
Software Analysis and Design
- Software Analysis: Investigation of the problem, defining *what* the system should
Java Concurrency: Threads, Runnables, and Synchronization
Class Acumulador
This class implements a synchronized counter.
public class Acumulador implements Comparable<Acumulador> {
private int acumulador;
private final int id;
public Acumulador(int id) {
this.id = id;
}
public int getAcumulador() {
return acumulador;
}
public synchronized void addAcumulador(int puntuacio) {
this.acumulador += puntuacio;
}
public int getId() {
return id;
}
@Override
public int compareTo(Content Management Systems: Structure, Components, and Implementation
CMS – Content Management System (CMS – Content Management Systems)
is a system manager <http://pt.Wikipedia.Org/wiki/Websites> websites, which includes tools to create, manage (edit and insert) content <http://pt.Wikipedia.Org/wiki/Tempo_real> real time, without the need for programming code <http://pt.Wikipedia.Org/wiki/Programa%C3%A7%C3%A3o> <http : / / pt.Wikipedia.Org / wiki / C% C3% B3digo>
Whose goal is to structure and facilitate the creation, administration <http:
Java Programming: Essential Concepts and Techniques
Notes Block 1
Question 1: What are the Key Features of Object-Oriented Programming?
Key Features of OOP:
- Encapsulation: Combines data and methods within a class.
- Inheritance: Derives new classes from existing ones.
- Polymorphism: Allows methods to operate differently based on the object.
- Abstraction: Simplifies complex reality by modeling classes appropriate to the problem.
- Classes and Objects: Blueprints (classes) create specific instances (objects).
Question 2: How do Data Abstraction and Encapsulation
Read MoreComprehensive Web Development Techniques and Practices
CSS Basics
Advantages of CSS
- Separation of content and design: CSS allows designers to separate the content (HTML) from the layout (CSS), which makes the website easier to maintain and manage.
- Improved page load speed: By using external style sheets, the browser caches the CSS file, reducing the need to load styles with each page request.
- Consistency: It provides a uniform look across all pages by applying a consistent design throughout the website.
- Flexibility and control: CSS offers fine control over
Networking Protocols and Concepts
Notes 1 – 1
(a) Maximum Capacity of Datagram in Internet Protocol
The maximum capacity of an IP datagram is 65,535 bytes, which includes both the header and the data. This size is determined by the 16-bit “Total Length” field in the IP header.
Deletion of IP Datagrams: IP datagrams are deleted when their “Time to Live” (TTL) value reaches zero. TTL is reduced by one at each hop, and when it reaches zero, the router discards the packet to prevent infinite looping in the network.