Exercise#3: Write a java program that prompts the user to input the shape type (rectangle, circle, or triangle), and the appropriate dimension of the shape based on the user input. Also based on the input, calculate the area of the shape and print it to the user. Exercise#4: A box of cookies can hold 24 cookies and a container can hold 75 boxes of cookies. Write a program that prompts the user to enter the total number of cookies. The program then outputs the number of boxes and the number of containers to ship the cookies. Note that each box must contain the specified number of cookies and each container must contain the specified number of boxes. If the last box of cookies contains less than the number of specified cookies, you can discard it, and output the number of leftover cookies. Similarly, if the last container contains less than the number of specified boxes, you can discard it, and output the number of leftover boxes. I Exercise #5: Write a program that mimics a calculator. The program should take as input two integers and an arithmetic operation (+,- *, or /) to be performed. It should then output the numbers, the operator, and the result. (For division, if the denominator is zero, output an appropriate message.) Exercise #6: Write a program that calculates and prints the bill for a cellular telephone company. The company offers two types of service: regular and premium. Rates vary based on the type of service and are computed as follows: 1. Regular service: $10.00 plus first 50 minutes are free. Charges for over 50 minutes are $0.20 per minute. 2. Premium service: $25.00 plus: a. For calls made from 6:00 a.m. to 6:00 p.m., the first 75 minutes are free; charges for over 75 minutes are $0.10 per minute. b. For calls made from 6:00 p.m. to 6:00 a.m., the first 100 minutes are free; charges for over 100 minutes are $0.05 per minute. Your program should prompt the user to enter an account number, a service code (type char), and the number of minutes the service was used. A service code of r or R means regular service; a service code of p or P means premium service. Treat any other 2/3 plus first 30 minutes are free. Charges for over 50 minutes are $0.20 per minute. 2. Premium service: $25.00 plus: a. For calls made from 6:00 a.m. to 6:00 p.m., the first 75 minutes are free; charges for over 75 minutes are $0.10 per minute. b. For calls made from 6:00 p.m. to 6:00 a.m., the first 100 minutes are free; charges for over 100 minutes are $0.05 per minute. Your program should prompt the user to enter an account number, a service code (type char), and the number of minutes the service was used. A service code of r or R means regular service; a service code of p or P means premium service. Treat any other 2/3 character as an error. Your program should output the account number, type of service, number of minutes the telephone service was used, and the amount due from the user. For the premium service, the customer may be using the service during the day and the night. Therefore, to calculate the bill, you must ask the user to input the number of minutes the service was used during the day and the number of minutes the service was used during the night. MacBook Pro