Python & Java: Master Backend & Frontend Web Developments

Write and run Java programs, create the main class and file structure, print hello world, and build a simple addition program using integer variables, then run to see the output.

Explore the basic syntax and structure of a Java program by defining a class with a main method, declaring int, double, and string variables, and printing results with System.out.println.

Learn how to define and use classes and objects in Java by building a simple car class with color and model attributes and a display method.

learn to define and call methods in java, pass parameters, return values, and understand variable scope with practical examples of greeting methods and local variables.

Explore arrays, array lists, and hash maps in Java, using for-each loops and the Java collections framework to store, print, and manage key-value pairs.

Learn how to declare variables of int, double, char, and boolean in Java, and use arithmetic, comparison, and logical operators with concatenation to print results.

Explore control flow in Java by implementing if-else conditionals and loops; practice printing positive, negative, or zero values, using for and while loops to display sequences.

Sort lists in Java using integers and strings, mastering ascending and descending orders with Collections.sort, reverse order, and lambda expressions for custom sorting such as by length.

Explore core object-oriented programming concepts in Java: inheritance with base and derived classes, polymorphism with method overriding, and encapsulation through private fields and getters.

Explore abstract classes and interfaces in Java by implementing an animal base class, overriding methods in Dog, and coding a Cat that implements the animal interface.

Master java exception handling with try catch blocks, division by zero, null pointer exception and arithmetic exceptions, and multiple catch clauses, plus a finally block that always executes.

Explore multi-threading and concurrency in Java, and learn through practical trade-management examples using thread subclassing, runnable, and executor-based approaches.

Discover java input output basics by writing to a file with a file writer, then reading with a file reader and buffer reader, using try catch to handle io exceptions.

demonstrates Java database connectivity (JDBC) by establishing a MySQL connection with driver manager, URL, and credentials, and creating a sample database table with id, first name, last name, department, salary.