2. Learning the Basics

Activity 1: Taking Input and Comparing Ranges

Solution

1. In main(), introduce an if statement to check if the arguments entered are of the right length:

   public class Activity1 {
       public static void main(String[] args) {
           if (args.length < 2) {
               System.err.println("Error. Usage is:");
               System.err.println("Activity1 systolic diastolic");
               System.exit(-1);
           }

2. Parse these arguments as int values and save them in variables:

           int systolic  = Integer.parseInt(args[0]);
           int diastolic = Integer.parseInt(args...