// Write a program that demostrates how to enter 3 test grades, which Il calculates the average test grade. import java.util.Scanner; // Needed for the Scanner class Il so you can input the test grades public class TestAverage { public static void main(Stringi args) { I/Note: use double as your data type // Test score #1 // Test score #2 // Test score #3 Il Average of the test scores // Create a Scanner object for keyboard input. Il Get the first test score. // Get the second test score. II Get the first test score