1. Write a method to calculate the sum of digits of any integer. Your program should ask the user to input a number in the main method and should then call your method to (5 Points) calculate the sum of the digits. Enter a number: 3782 Sum of digits of 3782 is 20 2. Write a method to compute the distance between two points A(x1, y1) and B(x2, y2). Using this method, write another method that will compute the area of a triangle whose vertices are A(x1, y1), B(x2, y2) and C(x3, y3). You may assume that point coordinates are integers. (15 Points) Hints: Distance between points= (x1-x2) + (y1 - y2) O o If a, b and c are the lengths of a triangle, then area of triangle is given by i. area = S (S-a)(S-b)(S-c) ii. S = (a + b + c)/2 Enter Point A coordinates: -2 0 Enter Point B coordinates: 5.0 Enter Point C coordinates: 0 4 Area of triangle is 14.03