1. Write a java program that prompt user for number of items to order and calculate cost of order at 50p per item. If order more than 100 items apply 10% discount. Output amount to be paid.

2. A java program is required to store details for a band comprising a drummer, a bass player, lead guitarist, keyboard player and a vocalist. Create a Member class to represent the band members, storing their stage name and instrument. Create an array of 5 band members and store their details from the keyboard. Using the above information implement the private variables, public constructor and appropriate public get and set methods for the Member class. Finally write a method to display all band member.

3. You put $1000 in the bank and will be adding additional $1000 per annum. Say that you are willing to wait 40 years for your saving to reach one million dollars. How high must the interest rate be to achieve this goal? To answer that, write a java program that try out various interest rates from the user until you find one that works.

4. Write a java program that reads a list of values from a text file myData.txt, square the integers and then sends the result to an output file myoutput.txt. The program should be able to report any non-integer values in the output file as well.