All instructions are included in attached files

public class Main
{
    // Style 1 method
    public static void method1()
    {
        System.out.println("*******************************");
        System.out.println("* Climate Data Analysis for Atikokan, Ontario *");
        System.out.println("*******************************");
    }
    
    // Style 2 method
    
    public static void printMessage(double a, double b)
    {
        if(a > b)
            System.out.printf("The average temperature was %.2f °C warmer in 1980 than in 2020.\n", (a - b));
        else if(a < b)
            System.out.printf("The average temperature was %.2f °C warmer in 2020 than in 1980.\n", (b - a));
        else
            System.out.println("The average temperature...