Practical Java Code Examples: JDBC, Threads, Servlets, Sockets

Posted by on Jun 27, 2025 in Computer Engineering | 0 comments

Java Programming Examples Collection

This document presents a collection of practical Java programming examples, covering database interactions with MySQL using JDBC, multithreading concepts, Swing UI development, and basic web application development with Servlets, along with a simple network client.

JDBC Database Operations

These examples demonstrate how to connect to a MySQL database and perform common operations like counting records, creating tables, and retrieving data.

Count Records in MySQL

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Computer Networking Fundamentals: Models, Protocols, Topologies

Posted by on Jun 25, 2025 in Computer Engineering | 0 comments

Computer Network Definition & OSI Model Openness

A computer network is a group of two or more interconnected computers that can communicate and share resources such as files, printers, applications, or internet access. The main goal of a network is to enable data sharing and communication between devices.

The OSI (Open Systems Interconnection) model is called “open” because it was developed as a universal, standardized framework that is not tied to any specific vendor, product, or technology.

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Python Data Essentials: Pandas, NumPy, and String Methods

Posted by on Jun 24, 2025 in Computer Engineering | 0 comments

Introduction to Pandas

Pandas is a powerful and flexible Python library used for data manipulation, analysis, and cleaning. It is suitable for handling different kinds of data, such as:

  • Tabular data with heterogeneous columns (different types of data in a single dataset).
  • Ordered & unordered time-series data (data arranged based on time or random order).
  • Arbitrary matrix data with row & column labels.
  • Unlabeled data, making it useful for raw statistical data processing.

Essential Pandas Operations

Pandas

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Essential Networking Concepts and Technologies

Posted by on Jun 19, 2025 in Computer Engineering | 0 comments

Ethernet Frame Format

The Ethernet frame consists of the following fields:

  • Preamble: (7 bytes) Synchronization pattern.
  • Start Frame Delimiter (SFD): (1 byte) Marks the start of the frame.
  • Destination Address: (6 bytes) MAC address of the recipient.
  • Source Address: (6 bytes) MAC address of the sender.
  • Protocol ID (TPID) / Length: (2 bytes) Indicates the type of protocol or the length of the data field.
  • Tag Control Information (TCI): (4 bytes, for VLAN-tagged frames) Includes:
    • Priority: (3 bits) User Priority
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Essential Data Structures & Algorithms Concepts

Posted by on Jun 3, 2025 in Computer Engineering | 0 comments

Abstract Data Types (ADT) and Arrays

An Abstract Data Type (ADT) is a conceptual model that defines a set of operations and behaviors for a data structure, without specifying the underlying implementation details. Arrays, as an ADT, define how data is organized and accessed through indexes, but not how it is actually stored in memory.

Arrays as an ADT

  • An Array ADT defines a collection of elements that can be accessed by their index (position).
  • Common operations on an Array ADT include: accessing an
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Essential Concepts in Data Structures and Algorithms

Posted by on May 29, 2025 in Computer Engineering | 0 comments

Data Structures and Abstract Data Types

A data structure is a specialized format for organizing, processing, and storing data in a computer so that it can be accessed and modified efficiently. Data structures are essential for managing large amounts of data and are fundamental to computer science and programming. They provide a way to manage data in a way that enables efficient algorithms to operate on that data.

Abstract Data Type (ADT) Explained

An Abstract Data Type (ADT) is a theoretical concept

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