Learn Java with hands-on examples - Completely from Scratch

Install the Java Development Kit (JDK) by downloading it on Windows, choose the correct 32-bit or 64-bit version, accept the license, and follow the installation wizard.

Install Eclipse IDE for Java developers by downloading the 32-bit zip, extracting it, and placing it in program files, then launch to access the package explorer, projects, and console output.

Learn Java fundamentals by building a Hello world program, exploring classes, packages, and the main method, and printing output to the console using System.out.println.

Import a Java project into Eclipse by selecting existing projects, browsing to the exercise files on your desktop, and importing the hello world project to move forward.

Learn to run and compile a Java program from the command prompt by navigating folders, compiling the main class, and executing it to display output.

Explore the Java main method, its public static signature, and how command-line arguments (string[] args) are passed and used, illustrated by a hello world example.

Discover how to access and navigate the Java API docs, explore classes and packages, and use Eclipse and the official Java documentation to troubleshoot and write code effectively.

Learn how the Java garbage collector automatically reclaims memory in the JVM by tracking object references and expired objects. It also helps you monitor memory usage and minimize allocations.

Explore Java primitives such as byte, short, int, long, float, and double, their bit sizes, literal formats with f and d suffixes, and how type casting converts doubles to integers.

Learn the character data type in Java by declaring a char variable, assigning values, and printing results. Practice converting characters to uppercase and using simple class concepts.

Explore booleans in Java with hands-on practice, evaluating true and false values using if statements and print outputs to understand boolean data types.

Explore how to write conditional statements in Java using if statements and switch statements, decide outcomes based on boolean logic, and print results when conditions are true or false.

Explore how switch statements in Java enable selecting among multiple options with practical examples. Learn to use a Scanner for user input and convert strings to numbers with Integer.parseInt.

Learn to implement a Java switch statement with cases for current and checking accounts, using user input, break, and default handling to guide program flow.

Learn how to use a for loop in Java by initializing i to zero, testing i < 3, and incrementing i, to repeat a printing action.

Explore how the while loop in Java evaluates a condition and repeats actions until the condition becomes false, with hands-on guidance on controlling loop termination.

Learn how a do-while loop in Java executes its body first and then checks the condition, enabling repeated execution until the condition becomes false.

the lecture explains how the main method controls program execution and differentiates static class methods from instance methods while covering access modifiers and return types such as void.

Learn function overloading in Java, where methods share a name but vary by signatures and arguments, with parameter counts determining which overloaded method runs and the resulting sums.

Discover how strings in Java are complex objects, use the new keyword to instantiate strings, and compare them with equals versus == through practical examples.

learn string parsing in Java by measuring string length, locating specific words with index, and removing spaces, while using a Scanner to read input and parse numbers from text.

Understand compile-time syntax errors versus runtime errors in Java, and fix issues like uninitialized variables, array indexing mistakes, and common exceptions with practical, hands-on examples.

Learn how to handle runtime exceptions in Java using try and catch blocks to catch errors, display messages, and keep the application running.

Explore Java arrays, learn zero-based indexing, declare and initialize arrays, access elements by index, determine array size, and print contents with loops.

Explore two dimensional arrays in Java by creating and filling a string 2d array, specifying rows and columns, iterating with nested loops, and building the final string with StringBuilder.

Learn to create and manipulate an array list in Java, including adding, inserting, removing, printing, and accessing elements by index.

Learn how to use a hash map in Java to store key-value pairs, access and print values, add and remove entries, and handle nulls and case sensitivity.

Explore encapsulation as grouping complex functionalities into smaller, easy-to-use units to simplify programming in Java. See how encapsulated data remains hidden while exposing outside access, enabling testing.

Explore how Java uses classes, the main method, and static versus instance methods to access and run code across multiple classes, including printing outputs from different class methods.

Learn how to organize Java code with multiple packages to keep large projects maintainable. Access static methods across classes and compare package structures for efficient design.

Learn how constructors create and initialize objects in Java from scratch, including default and custom constructors, access modifiers, and assigning values to fields.

Learn Java with hands-on examples from scratch by mastering setter and getter methods for practical coding practice.