Java coding

Coding Exercises: Do the following coding exercises and submit your source code along with a copy of your output screens in the Word document. C2.1 Rewrite your simple program that converts pounds into kilograms and include input validation. The program should prompt the user to enter a number in pounds (double), then convert it to kilograms (double), and display the result. Your program should check for valid and invalid (negative pounds) inputs and respond appropriately. C2.2 Write a program that reads three edges for a triangle and computes the perimeter if the input is valid. Otherwise, display that the input is invalid. NOTE: The input is valid only if the sum of every pair of two edges is greater than the remaining edge