SDPre - Sheldon Pasciak

💰 Full Stack Software Developer

📫 Email me at sheldon@pasciak.com

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🏡 https://pasciak.com

Welcome to my Skill Distillery Pre-work repository. This repository contains the pre-work for the Skill Distillery Java bootcamp. The pre-work is a series of assignments that are designed to get students familiar with the Java language and to prepare them for the course.

Assignments and Related Files

• In addition to the assignments related to the Objectives, there are additional files and code here to make use of my prior knowledge.

• A .gitignore file is used to restrict publication of private folders/files to the public GitHub repository.

• A shell script is used to automate the compilation of .java files.

  • The script is called compile-labs.sh and is located in the root directory of this repository. The script is run from the command line using the following command:

    ./compile-labs.sh

Technologies Used

• Java
• Git
• GitHub
• Terminal
• Bash Shell Scripting / Zsh Shell Scripting
• Markdown
• Sublime Text
• IntelliJ IDEA
• Google Chrome
• Apple macOS
• Slack
• Zoom

Lessons Learned

The lessons learned at this Bootcamp ensure my ability to succeed in the field of Software Development and solidify my competency in the following software development skills:

• Languages: Java
• Web: Angular, JavaScript, TypeScript, HTML, CSS, Bootstrap
• Database: SQL, Spring Data, JPA, JDBC, JPQL
• APIs: REST, JSON, Fetch, AJAX, XHR
• Methodologies: TDD, Agile
• Frameworks: Spring, Spring Boot, Agile, Scrum
• Configuration Management: Git

Java is a Compiled Language

• Java is a compiled language, which means that the source code is compiled into bytecode, which is then run on a Java Virtual Machine (JVM).
• The JVM is a virtual machine that runs on your computer, and it's the engine that executes the bytecode.
• The JVM is different for each operating system, so Java bytecode is platform-independent.
• The JVM is responsible for translating the bytecode into instructions that can be understood by the underlying operating system.
• The JVM is responsible for memory management, garbage collection, and other system-level tasks.
• The JVM is responsible for translating the bytecode into instructions that can be understood by the underlying operating system.

.java File

• A .java file consists of a single class definition.
• A .java file is compiled into a .class file.
• A .class file contains bytecode that is executed by the JVM.

Java Class

• A Java class is a blueprint for creating objects.
• The class defines the properties and behaviors of the objects that are created from it.
• The public static void main method is the entry point for a Java application.

public class Example {
  public static void main(String[] args) {
    System.out.println("Hello, World");
  }
}