1. Write a statement that creates and initializes a static variable named salesTax to 7.59.
2. Write a statement that creates a constant variable named TAX_RATE. The tax rate is 8.25%.
3. Write ONE Java statement that computes and displays the value of 25.
4. Write ONE Java statement that computes and displays a random number between 1 and 25.
5. Define boxing and unboxing.
6. Write a complete Java program that prompts the user for a number and prints back the integer as well as floating point values to the console.
7. Write a Java method that returns true if and only if a character is a digit or a letter. The method should display appropriate feedback to the console.
8. Explain in detail how main memory works.
9. How many bytes are contained within 16-bits, 32-bits, 64-bits?
10. When used with objects, what is the equality ( == ) operator really comparing?
11. Does an object created with a copy constructor reference the same memory location that the original object references? Explain.
12. Explain how a package is named in Java.
13. Create a Java class named Book with instance variables title, author, ISBN, and yearPublished. Include javadoc style comments to describe your interface. Such a class would normally have methods, but you are not required to supply any methods.
14. Add accessor and mutator methods to the Book class created in question #13.
15. Add a constructor and a copy constructor to the Book class created in question #13.
16. What is the purpose of Java's wrapper classes?
17. Write a complete Java program that prompts the user for a phrase. The program converts and displays the phrase in uppercase letters.
18. Write a complete Java program using the StringTokenizer class that computes and displays the average of a list of grades read from the command line. Each grade should be entered on the same line separated by commas. Enter signifies the end of the input.
Attachment:- Assignment.rar