Java Programming A Comprehensive Beginner S Guide
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Java Programming: A Comprehensive Beginner’s Guide
Author: Dr.Bomma Rama Krishna
language: en
Publisher: PND Publishers
Release Date: 2023-06-29
In the world of programming, Object-Oriented (OO) paradigm has gained significant importance and has become the foundation for designing and developing complex software systems. This paradigm provides a systematic approach to organizing and managing code by modeling real-world entities as objects and defining their behaviors through classes. This book aims to provide a comprehensive understanding of the OO paradigm using Java as the primary programming language. Java is a popular and widely used language that fully supports the principles and concepts of OO programming. It offers a robust set of features, including inheritance, polymorphism, encapsulation, and abstraction, which are essential for building scalable and maintainable software applications. The book starts with an introduction to the fundamental concepts of OO programming, including the concept of agents and their role in viewing the world. It then delves into the basics of Java, covering its timeline, features, syntax, data types, variables, and operators. The concept of classes and objects is introduced, along with topics like constructors, access control, method overloading, parameter passing, and recursion. Next, the book explores the concepts of strings and arrays in Java, followed by an in-depth discussion on inheritance, packages, and interfaces. Inheritance allows for the creation of hierarchical abstractions, and the book explores different types of inheritance, such as specialization, specification, construction, and extension. It also covers the benefits and costs associated with inheritance and explains the member access rules and the use of keywords like "super" and "final." The book then moves on to discuss packages and interfaces, which provide mechanisms for organizing and structuring code. It explains how to define, create, and access packages and how to define interfaces in Java. Exception handling and multithreading are vital aspects of modern programming, and Chapter 3 focuses on these topics. It covers the concepts of exception handling, including try-catch blocks, throws, and finally clauses. Custom exceptions and the creation of exception subclasses are also discussed. The chapter then delves into multithreading, explaining the differences between multithreading and multitasking, the thread class hierarchy, thread life cycle, and various aspects of thread creation, synchronization, daemon threads, and thread groups. Chapter 4 introduces the Abstract Window Toolkit (AWT), which provides the foundation for building graphical user interfaces (GUIs) in Java. It covers the AWT hierarchy and explains how to create a GUI using the Frame class. Event handling is also discussed, including event handling code and various AWT components such as buttons, labels, checkboxes, lists, text fields, and more. Swings, which is an advanced GUI toolkit in Java, is the focus of Chapter 5. The chapter explores the history of Swings, compares it with AWT, and explains the Model-View-Controller (MVC) architecture. It then covers commonly used Swing components and containers, including buttons, labels, text fields, checkboxes, radio buttons, and more. Layout managers, which are essential for organizing and positioning components within a container, are also discussed. Finally, Chapter 6 presents several Java projects to apply the concepts learned throughout the book. These projects include a moving balls application using threads and GUI, a simple image viewer, a basic calculator, and the implementation of a simple notepad. By the end of this book, readers will have a solid understanding of the principles and concepts of the OO paradigm, as well as the ability to develop Java applications using object-oriented techniques. The book is designed to be a valuable resource for beginners and intermediate programmers looking to enhance their understanding and skills in object-oriented programming with Java.
Beginning Java Programming
A comprehensive Java guide, with samples, exercises, case studies, and step-by-step instruction Beginning Java Programming: The Object Oriented Approach is a straightforward resource for getting started with one of the world's most enduringly popular programming languages. Based on classes taught by the authors, the book starts with the basics and gradually builds into more advanced concepts. The approach utilizes an integrated development environment that allows readers to immediately apply what they learn, and includes step-by-step instruction with plenty of sample programs. Each chapter contains exercises based on real-world business and educational scenarios, and the final chapter uses case studies to combine several concepts and put readers' new skills to the test. Beginning Java Programming: The Object Oriented Approach provides both the information and the tools beginners need to develop Java skills, from the general concepts of object-oriented programming. Learn to: Understand the Java language and object-oriented concept implementation Use Java to access and manipulate external data Make applications accessible to users with GUIs Streamline workflow with object-oriented patterns The book is geared for those who want to use Java in an applied environment while learning at the same time. Useful as either a course text or a stand-alone self-study program, Beginning Java Programming is a thorough, comprehensive guide.
The Absolute Beginner’s Guide to Learn Database Programming Using Python GUI with PostgreSQL and SQL Server
This book is a comprehensive guide to Python as one of the fastest-growing computer languages including Web and Internet applications. This clear and concise introduction to the Python language is aimed at readers who are already familiar with programming in at least one language. This hands-on book introduces the essential topic of coding and the Python computer language to beginners and pogrammers of all ages. This book explains relational theory in practice, and demonstrates through two projects how you can apply it to your use of PostgreSQL and SQL Server databases. This book covers the important requirements of teaching databases with a practical and progressive perspective. This book offers the straightforward, practical answers you need to help you do your job. This hands-on tutorial/reference/guide to PostgreSQL and SQL Server is not only perfect for students and beginners, but it also works for experienced developers who aren't getting the most from both databases. In designing a GUI and as an IDE, you will make use Qt Designer. In the first chapter, you will learn to use several widgets in PyQt5: Display a welcome message; Use the Radio Button widget; Grouping radio buttons; Displays options in the form of a check box; and Display two groups of check boxes. In chapter two, you will learn to use the following topics: Using Signal / Slot Editor; Copy and place text from one Line Edit widget to another; Convert data types and make a simple calculator; Use the Spin Box widget; Use scrollbars and sliders; Using the Widget List; Select a number of list items from one Widget List and display them on another Widget List widget; Add items to the Widget List; Perform operations on the Widget List; Use the Combo Box widget; Displays data selected by the user from the Calendar Widget; Creating a hotel reservation application; and Display tabular data using Table Widgets. In chapter three, you will learn: How to create the initial three tables project in the School database: Teacher, Class, and Subject tables; How to create database configuration files; How to create a Python GUI for inserting and editing tables; How to create a Python GUI to join and query the three tables. In chapter four, you will learn how to: Create a main form to connect all forms; Create a project will add three more tables to the school database: Student, Parent, and Tuition tables; Create a Python GUI for inserting and editing tables; Create a Python GUI to join and query over the three tables. In chapter five, you will join the six classes, Teacher, TClass, Subject, Student, Parent, and Tuition and make queries over those tables. In chapter six, you will get introduction of postgresql. And then, you will learn querying data from the postgresql using Python including establishing a database connection, creating a statement object, executing the query, processing the resultset object, querying data using a statement that returns multiple rows, querying data using a statement that has parameters, inserting data into a table using Python, updating data in postgresql database using Python, calling postgresql stored function using Python, deleting data from a postgresql table using Python, and postgresql Python transaction. In chapter seven, you will create dan configure PotgreSQL database. In this chapter, you will create Suspect table in crime database. This table has eleven columns: suspect_id (primary key), suspect_name, birth_date, case_date, report_date, suspect_ status, arrest_date, mother_name, address, telephone, and photo. You will also create GUI to display, edit, insert, and delete for this table. In chapter eight, you will create a table with the name Feature_Extraction, which has eight columns: feature_id (primary key), suspect_id (foreign key), feature1, feature2, feature3, feature4, feature5, and feature6. The six fields (except keys) will have a VARCHAR data type (200). You will also create GUI to display, edit, insert, and delete for this table. In chapter nine, you will create two tables, Police and Investigator. The Police table has six columns: police_id (primary key), province, city, address, telephone, and photo. The Investigator table has eight columns: investigator_id (primary key), investigator_name, rank, birth_date, gender, address, telephone, and photo. You will also create GUI to display, edit, insert, and delete for both tables. In chapter ten, you will create two tables, Victim and Case_File. The Victim table has nine columns: victim_id (primary key), victim_name, crime_type, birth_date, crime_date, gender, address, telephone, and photo. The Case_File table has seven columns: case_file_id (primary key), suspect_id (foreign key), police_id (foreign key), investigator_id (foreign key), victim_id (foreign key), status, and description. You will create GUI to display, edit, insert, and delete for both tables as well.