Using java methods

Write a program which asks the user to enter the length and width of a rectangle and computes the area. The program MUST include the following methods: readLength: This method asks the user for the length of the rectangle, and returns the length. readwidth: This method asks the user for the width of the rectangle and returns the width. compute Area: This method takes the length and width as input and returns the computed area of the rectangle. display solution: This method displays the solution to the problem. You will need to think very carefully about how these methods should work together to find the solution. Input Validation: The length must be positive. The width must be positive. Requirements: All four of the required methods must be implemented, and all must be correctly used within your program to get credit