That's absolutely right! You've captured two of Java's core strengths:
Object-Oriented Programming (OOP): Just like C++, Java is fundamentally an OOP language. This means it organizes software design around data, or objects, rather than functions and logic. This structure makes code modular, reusable, and easier to maintain. Key concepts include: Encapsulation, Inheritance, Polymorphism, and Abstraction.
Multithreading: This is where Java truly shines, especially for large-scale applications like those powering services like Yahoo (or any major concurrent web platform). Multithreading allows a single program to run multiple parts of its code concurrently (at the same time). This is crucial for:
Performance: Utilizing modern multi-core processors effectively.
Responsiveness: Preventing the application from freezing while waiting for a long task (like a database query or a network request) to complete.
Multithreading is what enables a web server written in Java to handle hundreds or thousands of simultaneous user requests efficiently.
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