last part only. kindly let us use a user defined method. kindly let us use simple maths and resort to no formulas

- Write a function in Java that takes in two integers as parameters and returns the power. Ex: 2,3 are parameters then the result would be 8(23) - Write a function in Java that takes as parameters the number of hours a student registered, the price of an hour, additional fees and then calculates the total amount that that student needs to pay for that particular semester. - Write a Java program that calculates the total amount of money you will have in your account after 5 years if the original amount of money is 3000 and the interest rate is 3% per year