Java Basics and Libraries for Beginners Track - Online Learning with Certificate

Java Basics and Libraries for Beginners

Beginner

4.3

15 reviews

40 Learners

Updated 12/2025

A beginner-level track designed to introduce you to Java fundamentals and essential libraries. This track covers Java syntax, basic constructs, and pr…

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What you will learn

Understand Java syntax and program structure

Handle exceptions and errors in Java

Work with variables, data types, and operators

Apply Java libraries for common programming tasks

Use control flow statements and loops

Configure Java applications using properties and environment variables

Learning track content

Discover the unique features of Java and understand why it's a recommended programming language to learn. Write your first Java code and explore how to print text to the console.

Backend Development

Role of Java in the Backend

Learn the basics of programming, dive into primitive data types, and explore operations with them. Write code that performs mathematical tasks and evaluates conditions for seamless execution.

Primitive Data Types

Challenge: Primitive Types

Mathematical Operations in Java

Mathematical Operations on char

If-Else Statement

Switch-Case Statement

New Task Structure

Challenge: Weekday Switch

Explore various loops such as for, while, and do-while, which are essential in any programming language. Loops enable efficient iteration over large datasets, saving significant time. Apply them extensively in tasks like sorting, working with arrays, collections, and more.

Introduction to Loops

While-Loop

Do-While Loop

Challenge: Building a Server Retry Mechanism

For-Loop

Increment and Decrement

Infinite Loop

Challenge: Filtering Numbers in a Loop

Learn how to effectively use arrays in Java programming by discovering how to group data into arrays and exploring common methods and properties for working with them. Techniques for manipulating and optimizing arrays in real-world applications will also be examined.

What is Array?

Using Loops with Arrays

Index Out Of Bounds

Two-Dimensional Array

Iteration In Two-Dimensional Array

For-Each Loop

Learn about String, a crucial data type in Java, and discover its many built-in methods and operations. Explore String and StringBuilder, understanding their basic methods and how to use strings effectively in Java.

What Is String?

Basic Methods In String

Practical Applications of String Methods

Challenge: Filter Failure Messages

NullPointerException

StringBuilder

String Pool, Method Equals()

Summary

Learn the fundamentals of Java properties files, their structure, and how they are used for application configuration.

What Are Java Properties Files?

Reading Properties Files in Java

Writing and Updating Properties Files

Properties File Encoding and Internationalization

Best Practices for Organizing Properties Files

Dive into Java's system properties and environment variables, and learn how to use them for flexible and dynamic configuration.

Understanding System Properties

Accessing Environment Variables in Java

Combining Properties Files, System Properties, and Environment Variables

Securing Sensitive Configuration Data

Dynamic Configuration at Runtime

Master advanced configuration patterns, including layered configuration, profiles, and integration with build tools.

Layered Configuration and Overrides

Using Profiles for Environment-Specific Configuration

Integrating Configuration with Maven

Testing Configuration with JUnit

Documenting and Maintaining Configuration

Learn the basics of Java syntax, variables, data types, and control flow to build a strong foundation for using the java.util library.

Java Program Structure

Variables and Data Types

Operators and Expressions

Control Flow Statements

Dive into the core java.util collections: Lists, Sets, and Maps. Learn how to store, retrieve, and manipulate groups of data efficiently.

Introduction to Collections

Using ArrayList

Working with HashSet

Exploring HashMap

Explore essential utility classes in java.util, such as Collections, Random, and Date, to simplify common programming tasks.

Collections Utility Methods

Generating Random Values

Working with Date and Calendar

Learn how to handle exceptions and configure Java applications using properties and environment variables.

Exception Handling Basics

Using Properties for Configuration

Accessing Environment Variables

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Why People Choose Codefinity

Trusted by Employees of Leading Companies and Students from Top Universities

Full catalog access

Try Codefinity with confidence – 30-day money-back guarantee included

Instantly access 500+ courses

Trusted by Employees of Leading Companies
and Students from Top Universities