please ignore the top picture of a calculus problem

(1 point) Compute the surface area of revolution of y sin x about the x-axis over the interval (0,3). S Write a java program to display the payroll details of an employee for a particular month of a year. Get all the values of these variables from the user, preferably using Scanner class. Use variables for holding the following fields - Employee name - Employee ID - Employee's designation (Depending upon the user input for employee's designation wage per day value of the employee is assigned. Employee designation may be Manager / Team lead / team member / Clerk any of your choice for this variable) Employee's department - Month for which the payroll information is displayed Year for which the payroll information is displayed - Number of days that the employee has worked in a particular month (Month is also got as user input) Number of day off in a particular month (Month is also got as user input) Wage per day (This value is assigned based on the employee's designation that the user inputs Salary Compute the salary as Number of days worked * wage per day, Display all the above variables as the payroll report for an employee based on a month that the user inputs