Read, understand, and answer the problems stated below. Writethe appropriate method headings using the provided method name for the following processes. (java)

1. Calculate and return the sum of two decimal numbers - getSum.*

2. Compute and return the average speed of a car, given the distance traveled (as type double)*

3. Given the radius of a circle, print the area of a circle - printArea.*

4. Given a student's name and three test scores (of type int), print the student's name and average test score - printStudentDetails.*

5.Accept an integer, compute for the square of the number and return the String equivalent of the square of the number - makeString.*