Activity 1: [Weightage: 20%] Write a program that keeps taking input from the user until the user enters -1 and display the following statistics at the end. Write separate method for each functionality. Maximum number - Minimum Number - Sum - Average Paste your code below: Screenshot of the output: Activity 2: [Weightage: 20%] Write a JAVA program to print the following using loops. Write separate methods for both patterns. i) ********** *******: ii) * ** *** Paste your code below: **** ** Screenshot of the output: