Java performance optimization
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final keyword in Java provides a way to define constants, enforce method behavior (prevent overriding), and prevent inheritance. It is a powerful tool for ensuring that certain aspects of your program remain immutable and fixed, which can help improve code reliability, security, and maintainability. try, catch, finally, throw, and throws. switch-case statement to handle different arithmetic operations. The basic operations we’ll include are addition, subtraction, multiplication, and division. We'll take input from the user for two numbers and the operation they want to perform. ArrayList and LinkedList are classes that implement the List interface, which is part of the Java Collections Framework. However, they have significant differences in terms of their underlying data structures, performance, and typical use cases.