What is Java, and what are its key features?Explain the difference between JDK, JRE, and JVM.What is the main difference between abstract classes and interfaces in Java?How is memory managed in Java? Explain the concepts of stack and heap.What are the access modifiers in Java, and what do they mean (e.g., public, private, protected, default)?What is the difference between "==" and ".equals()" when comparing objects in Java?How does Java support multithreading, and what are the benefits of using threads?What is the difference between a checked exception and an unchecked exception in Java? Give examples of each.Explain the concept of method overloading and method overriding in Java.What is a JavaBean, and what are its conventions?
