Question

1. Why Arraylist data structure is not able to store the primitive type data?

2. Comparison of Arrays and Arraylist data structure?

3. Which methods are available in java.util.Arrays class, write their names only.

4. What is advantage of using autoboxing and unboxing in java?

5. Difference between super and this keyword?

6. Rules of inheritance in java, write down all of them?

7. Write a program to demonstrate type of inheritances allowed in java by using classes.

8. Write a program to demonstrate the use of enumeration in java.

9. Write a program to demonstrate the use of wrapper classes in java.

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Answer 1

Answer:

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