HomeCoursesJava Masterclass for Software Developers

4.4

Beginner

24h

Java Masterclass for Software Developers

Gain insights into Java fundamentals, conditional and loop statements, and operations on arrays. Learn about debugging and creating your initial programs to advance as a proficient Java developer.

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Overview

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In this course, you will learn the beginning concepts of Java and work your way up to more advanced techniques. To kick things off, you will get hands-on practice with the fundamentals of Java including: variables, constants, arithmetic operations, and how to debug simple programs. As you work your way through the course, you will take what you have learned and apply it to more advanced topics like conditional statements, loop statements, and how to perform operations on arrays. After completing this course, you will have taken the first steps to becoming a productive and efficient Java developer. You will be able to create simple programs, and when you’re ready you’ll be able to create more challenging projects and tackle more advanced material.

In this course, you will learn the beginning concepts of Java and work your way up to more advanced techniques. To kick things...Show More

WHAT YOU'LL LEARN

After completing this course, you will be able to • Write simple Java programs that involve decisions, repetition, and arrays of data • Specify Java classes and their methods, while designing a solution to a given problem • Think critically about the problem-solving and programming concepts presented • Further your study of Java by completing intermediate and advanced courses

TAKEAWAY SKILLS

Java

Programming Language

Content

164 Lessons223 Quizzes21 Challenges

A First Look at Java

12 Lessons

Learn the fundamentals of Java programming, including data types, variables, and input handling.

Introduction: A First Look at Java

The Programming Language Java

A Simple Java Program

Simple Input from the Keyboard

A Problem Solved: Apples by the Box

Writing, Compiling, and Running a Java Program

Summary: A First Look at Java

Practice Challenges for Fun

Arithmetic Expressions

8 Lessons

Unpack the core of Java arithmetic expressions, including operators, type conversions, and mathematical methods.

Introduction: Arithmetic Expressions

Arithmetic Operators

Conversions between Numeric Data Types

A Problem Partially Solved: Day of the Week

Standard Mathematical Methods

A Problem Solved: Wind Chill

Summary: Arithmetic Expressions

Practice Challenges for Fun

Debugging Interlude—The Errors Programmers Make

7 Lessons

Examine the types of programming errors, from compile-time to execution-time, and debugging methods.

Introduction: Debugging Interlude—the Errors Programmers Make

Kinds of Errors

Compile-Time Errors

More Compile-Time Errors

Execution-Time Errors

Summary: Debugging Interlude—the Errors Programmers Make

Practice Challenges for Fun

Using Classes and Objects

13 Lessons

Grasp the fundamentals of using Java classes, objects, and core standard libraries.

Introduction: Using Classes and Objects

Terminology: Classes and Objects

The Class String

Methods of the Class String

Strings and the Class Scanner

A Problem Solved: Processing a String

The Class DecimalFormat

Summary: Using Classes and Objects

Practice Challenges for Fun

Class Definitions—The Fundamentals

12 Lessons

Map out the steps for understanding and implementing Java class definitions and constructors.

Introduction: Class Definitions—the Fundamentals

Using a Class

Beginning a Class Definition

Defining Constructors

Defining a Class’s Methods

Local Variables

Designing a New Class

Implementing a New Class

Passing Arguments

A Problem Solved: Comparing Classes of Squares

Summary: Class Definitions—the Fundamentals

Practice Challenges for Fun

Debugging Interlude—Common Mistakes with Classes

8 Lessons

Tackle common class-related errors, improve debugging skills, and ensure correct object initialization.

Introduction: Debugging Interlude—Common Mistakes with Classes

A Silent Computational Error

Undefined Variables of a Class Type

Constructors

Omitting the Method toString

A Problem Solved: Extracting Strings

Summary: Debugging Interlude—Common Mistakes with Classes

Practice Challenges for Fun

Decisions

10 Lessons

Build on decision-making in Java, encompassing if statements, comparisons, boolean expressions, and assertions.

Introduction: Decisions

The if Statement

Basic Comparisons

A Problem Solved: Day of the Week

The if-else Statement

More Boolean Expressions in Comparisons

A Problem Solved: Leap Years

Assertions

Summary: Decisions

Practice Challenges for Fun

Class Definitions—More Details

10 Lessons

Learn how to use advanced class definitions, Boolean methods, private methods, enumerations, and constructors.

Introduction: Class Definitions—More Details

Boolean-Valued Methods

Private Methods

Final Fields and Static Fields

Enumerations

A Problem Solved: Representing Coins

Completing the Definition of the Class Coin

Calling a Constructor from a Constructor

Summary: Class Definitions—More Details

Practice Challenges for Fun

Multiway Decisions

10 Lessons

Explore multiway decisions using nested if and switch statements for efficient decision-making.

Introduction: Multiway Decisions

Nested if Statements

More Examples of Multiway if Statements

A Problem Solved: Health Club Welcome

The switch Statement

More Examples of the switch Statement

A Problem Solved: Designing a Class of Temperatures

A Problem Solved: Defining the Class Temperature

Summary: Multiway Decisions

Practice Challenges for Fun

10.

Debugging Interlude—Avoiding Mistakes; Finding Mistakes

6 Lessons

Master the steps to avoid and find mistakes in Java through effective debugging and testing.

Introduction: Debugging Interlude—Avoiding/Finding Mistakes

Avoiding Mistakes

Debugging a Program in Development

An Introduction to Testing

Refining a Problem’s Solution

Summary: Debugging Interlude—Avoiding/Finding Mistakes

11.

Repetition

12 Lessons

Break down complex ideas about Java loops, their logic, common errors, and practical applications.

Introduction: Repetition

The Logic of a Loop

The while Statement

More Examples

A Problem Solved: A Guessing Game

Mistakes in Loops

Boolean Variables in Loops

Nested Loops

The Scope of a Variable

A Problem Solved: The Root of an Equation

Summary: Repetition

Practice Challenges for Fun

12.

Repetition Continued

7 Lessons

Dig into loop control in Java, focusing on for loops, do loops, and practical examples.

Introduction: Repetition Continued

The for Statement

More Examples

Using an Enumeration with a for Statement

The do Statement

Summary: Repetition Continued

Practice Challenges for Fun

13.

Debugging Interlude—Debugging Loops

6 Lessons

Simplify complex topics on effective loop debugging using testing, tracing, and debugging tools.

Introduction: Debugging Interlude—Debugging Loops

Testing

Tracing

An Example: String Processing

Overview of Debugging Tools

Summary: Debugging Interlude—Debugging Loops

14.

Arrays

17 Lessons

Master the essentials of arrays in Java, including declaration, manipulation, and optimization techniques.

A Problem Solved—Computing Deviations

Partially Filled Arrays

Counting Occurrences in an Array

Locating the Smallest Entry in an Array

Searching an Array for a Given Entry

Arrays of Objects

Arrays as Arguments or Return Values in a Method

Practice Challenges for Fun

Copying an ArrayProofer version

15.

An Array-Based Data Structure

13 Lessons

Learn how to use array-based structures for efficient collection management in Java.

Introduction: An Array-Based Data Structure

The Data Collection Bag

Specifying a Bag

Identifying a Group of Core Methods

Defining the Data Fields, Constructors, and Core Methods

The Class BagOfStrings So Far

Implementing More Methods

Methods That Remove Strings

The Methods getIndexOf and contains

Testing the Methods That Remove Strings

Testing the Completed Class BagOfStrings

Summary: An Array-Based Data Structure

Practice Challenges for Fun

16.

Debugging Interlude—Debugging Arrays

5 Lessons

Unpack the core of debugging arrays in Java, focusing on allocation, indexing, and preventing data corruption.

Introduction: Debugging Interlude—Debugging Arrays

An Unallocated Array

A Silent Error

Array Index Out of Bounds

Summary: Debugging Interlude—Debugging Arrays

17.

Glossary

1 Lessons

Explore the comprehensive glossary for foundational concepts and constructs in Java programming.

Glossary of Terms

18.

Appendixes

6 Lessons

Grasp the fundamentals of computing, Java reserved words, Unicode, programming styles, and post-course development tools.

Introduction to Computing

Reserved Words

Unicode Characters

Documentation and Programming Style

Java Programming After this Course

Getting Java for Free

19.

1 Lessons

Take a look at the copyright protection and licensing for course content and Java code.

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Course Author:

Frank M. Carrano

Developed by MAANG Engineers

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Hands-on Learning Powered by AI

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Personalized Interview Prep

Skip the LeetCode grind with a custom roadmap that adapts to your goals. Hands-on practice for Coding Interviews, System Design, and more.

Mock Interviews

Test your skills in a simulated interview setting. Receive personalized feedback based on your performance. Available for Coding Interviews, System Design, and more.

AI Prompt

Build prompt engineering skills. Practice implementing AI-informed solutions.

Code Feedback

Evaluate and debug your code with the click of a button. Get real-time feedback on test cases, including time and space complexity of your solutions.

Explain with AI

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AI Code Mentor

AI Code Mentor helps you quickly identify errors in your code, learn from your mistakes, and nudge you in the right direction — just like a 1:1 tutor!

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