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Showing posts from August, 2024

What is a web application? (Lesson 7 of our Java Bootcamp)

  What is a  Java  web application? (During Lesson 7 of our   Java    Bootcamp, we will cover this topic in depth and create such an app )  A  Java  web application (web app) is: ·          an  application program   ·          that is stored on a remote server ·          and delivered over the internet through a browser interface.  Examples of web applications are for instance: ·          webmail, ·          online calculators, ·          and e-commerce platforms. How web applications work: Java  web applications are accessed over a network.  That means, users don't need to download a web application.  Instead, they can conveniently access the  Java...

What is Java JDBC in easy terms (Week 4 of our Java bootcamp)

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  What is Java JDBC in easy terms In Week 4 of our Java bootcamp, we will cover this topic in-depth, and create apps using JDBC. Java JDBC (Java Database Connectivity) is a standard Java API that enables Java applications to interact with various databases in a consistent and platform-independent manner. Introduced as part of the Java Standard Edition, JDBC provides a set of classes and interfaces that allow developers to connect to a database, execute SQL queries, and retrieve and manipulate data. Key Features of Java   JDBC: Database Independence: Java JDBC provides a common interface for connecting to different databases (such as MySQL, PostgreSQL, Oracle, SQL Server, etc.) without the need to write database-specific code. This is achieved through JDBC drivers, which are specific to each database and act as a bridge between the Java application and the database. Establishing Connections: Java   JDBC allows dev...

Understanding Threads in Java Concurrent Programming (Week 5 of our Java bootcamp)

  Understanding Threads in Java Concurrent Programming  In week 5 of our Java bootcamp, we will discuss this topic in-depth and create interesteing code using Threads In Java , concurrent programming, a thread represents the smallest unit of execution that can run independently within a program. Threads enable Java applications to perform multiple tasks simultaneously, making efficient use of system resources, particularly in environments with multi-core processors. Each thread has its own path of execution, allowing it to run code, maintain its own variables, and handle its own instruction sequence while sharing the application’s memory space with other threads. What is a Thread? A Java thread can be thought of as a lightweight process. While traditional processes have their own separate memory space, threads within the same process share the same memory area. This Java characteristic allows threads to communicate with each other more efficiently, as they can acces...

Who are the Dining Philosophers in JavaProgramming

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  Who are the Dining Philosophers in Java Programming?   Java multi-threading can be compared to the classic dining philosophers problem. Imagine five philosophers sitting around a dinner table, each wanting to eat spaghetti. To do so, each philosopher needs two forks, but there is only one fork between each pair of philosophers. A philosopher must wait until both adjacent forks are available before they can eat. Once a Java philosopher is done eating, they put down one or both forks. If each philosopher picks up one fork and waits for the second fork to become available, all five will end up holding one fork and waiting for the other. In this situation, each philosopher expects a neighbour to put down a fork, but since all are waiting and none put their fork down, everyone remains stuck. This situation, where all processes in Java programming are waiting indefinitely for each other to act, is known as a deadlock . 😊     Learn to code in   Java

Java is Very Popular and offers a High Salary

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  Java is Very Popular and offers a High Salary. J ava is one of the most popular programming languages globally, with around 9 million developers using it and running on approximately 7 billion devices worldwide, according to Oracle blogs. The high demand for   Java skills makes Java developers highly sought after, leading to some of the industry's most lucrative job opportunities. The average salary for a Java developer ranges from $47,169 to $106,610 per year. Java is also easy to learn. Those taking the Java evenings course will find the syntax straightforward and similar to English, allowing them to get started within just a few hours. Additionally, Java boasts a large programming community, which means course attendees will have ample support from experienced Java professionals when needed. Another significant advantage is   Java ’s abundant Application Programming Interface (API), which includes numerous   Java classes, packages, and interfaces....

Why attend a Java Bootcamp?

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  Why attend a Java Bootcamp? Compared to a degree, the Java Bootcamps is shorter, less costly, more practical and more focussed on just the one skill, Java Programming (although Java Programming includes multiple skills) and takes you from scratch to job-ready. It is a very effective way to put your head down, learn the Java Programming Language and move on in your career. Twelve weeks of dedicated learning and practicing thoroughly enhance   skills and broaden opportunities. What is a Java Bootcamp? A Java coding bootcamp is an intensive training program to master Java coding skills within 12 weeks. Skills learnt that are relevant immediately in the workplace as  Java  Coder. Project-based learning ensures that you become fluent in creating useful and effective  Java  code.   The biggest at advantage is the in-depth technical knowledge and practical skills. Who will benefit? The Java Bootcamps is an excellent opportunity fo...

Excel AutoSum Magic

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Excel Autosum in a minute for beginners Excel tip.

JavaFX for spectacular Full-Stack Java Applications (Week 6 of our Java Bootcamp)

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  JavaFX for spectacular Full-Stack Java Applications  In Week 6 of our Java Bootcamp, we cover this topic in depth, and create spectacular front-ends. What is JavaFX ? •          JavaFX stands as open-source •          Used to create sophisticated client applications, including spectacular font-ends. •          It is an advanced client application platform. •          Engineered on Java . •          Tailored for desktop, mobile, and embedded systems. •          It is a contemporary, high-performing, and comprehensive toolkit   What is JavaFX   Scene Builder? •       The   JavaFX Scene Builder makes coding front-ends an easy task, by providing a drag and drop tool •  ...

Functional and Non-Functional requirements in software testing

  Functional and Non-Functional requirements in software testing Functional Requirements are specific user demands defining basic system facilities. Non-functional Requirements, also known as non-behavioural requirements, ensure quality and adhere to project contracts. They encompass aspects such as Portability, Security, Maintainability, Reliability, Scalability, Performance, Reusability, and Flexibility. Load testing assesses system performance under real-world stress, identifying bottlenecks and user/transaction limits. Beta Testing involves real users testing in a live environment, part of User Acceptance Testing. Accessibility Testing checks if the system behaviour aligns with specified requirements. Installation Testing reviews installation procedures, including updates, uninstallation, and reinstallation. Non-functional Testing confirms system behaviour aligns with requirements. Stress Testing analyses system behaviour post-failure, ensuring recovery,...

Self-paced Java Courses vs Classroom Java Courses: A Technical Perspective

  Self-paced Java Courses vs Classroom Java Courses : A Technical Perspective The preference for self-paced Java Courses   over classroom-based education depends on contextual factors, the educational modality, and individual inclinations. Each approach has its unique advantages and drawbacks, with the choice influenced by considerations such as subject matter, learning objectives, and the learner's personal circumstances. Here’s a technical breakdown for each:   Self-paced Java Courses : Advantages: 1.     Flexibility: Learners can autonomously structure their schedules and advance at their own pace. 2.     Accessibility: Learning materials are available anytime and anywhere, often facilitated through online platforms. 3.      Customization: Learners can concentrate on specific topics of interest or revisit challenging concepts as required . Disadvantages: 4.     Lack of Structure:...