it's java

1. Explain what is meant by aggregation? Give a pseudocode description of the use of aggregation. Why is a copy constructor useful in the context of aggregation?

2.Explain what wrapper classes are. Explain the parse methods provided by the wrapper classes. Explain the main reason why we need wrapper classes?

3. What does an ArrayList give us that a simple array does not? Explain the use of an ArrayList. What is an ArrayList an example of?

4. What does the import statement do in Java? Give an example of an import statement and describe what it is used for. What do you need to import to use a scanner object?

5. What is a class? What does it mean by the phrase "a class is a blueprint"? Describe how to use the class to create an object. Describe how to use a class without instantiating new objects. Use pseudocode to show the creation of an object.