Java-Java code compilation and development

Example

Java allows the use of classes, inheritance, polymorphism, and encapsulation, making it easier to organize and reuse code. For example, creating a 'Vehicle' superclass and then extending it into specific 'Car', 'Truck', and 'Motorcycle' classes.

Scenario

In a car rental system, Java’s OOP allows you to define a base class `Vehicle`, with common attributes (speed, fuel), and subclasses like `Car` and `Truck`, which can have their unique methods (carrying passengers vs. goods). This abstraction simplifies managing different vehicle types and makes the code more maintainable.

Example

Java bytecode, which is generated after compiling a program, can run on any machine that has the Java Virtual Machine (JVM).

Scenario

A company building a financial application could develop the core logic in Java and be confident that it will run smoothly across different operating systems (Windows, Linux, macOS) without changing the code. This is critical in industries like banking, where applications need to run on diverse environments.

Example

Java provides built-in support for multithreaded programming, allowing multiple threads to run concurrently in a single process. It includes classes like `Thread`, `Runnable`, and higher-level abstractions such as `ExecutorService`.

Scenario

In a stock trading platform, real-time price updates and user transactions need to be processed simultaneously. Java’s multithreading allows background threads to handle price updates, while the main thread processes user actions, ensuring smooth, responsive performance.