Question: Q1. How to achieve/implement encapsulation (information hiding) in Java? Support your answer with a code example. Q2. What is the difference between abstract class and

Q1. How to achieve/implement encapsulation (information hiding) in Java? Support your answer with a code example. Q2. What is the difference between abstract class and interface in Java? Q3. List two advantages and two disadvantages of OOP? Q4. What is the time complexity of searching an item/element in a one-dimensional array? Q5. Draw a doubly linked list with four nodes - each node has an integer number? Q6. Define Stack \& Queue, list the basic operations and their meanings for each one
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