Question

Please go to the Practice Exercises (at the end of Chapter 3 in your text on page 129) and do Exercise E 3.14 which asks you to compute and print the current season of the year depending on the month and day (input as integers). Be sure to review Java boolean operators, multi-way IF-ELSE statements, Switch statements, and String comparison methods before implementing your Java code. The algorithm for this program has been written for you and is included in the problem description. Once you have implemented the algorithm in Java and tested your code to make sure it is working successfully, please move on to add some input validation to ensure that the user only enters integer values for the month and day. If the input is not an integer, then the program will exit with an error message (see example in Section 3.8 on pages 118-119). Along the same lines, you should also check to make sure the month is in the range of 1 thru 12, and that the day is in the range of 1 thru 31. Required: Well formatted easy-to-read output (use separate labeled lines for each item to be printed). Submission Requirements (3 items): Please submit: Your Java Program including Javadocs comments (use prologue* comments and inline** comments to explain code). Your Java code will be saved using a .java file extension, for example Seasons.java. • Several Screen Shots of your program output illustrating the functionality of your program. Please be sure to test all branches of your program code. * Prologue comments are placed at the top of your program. They include your name, the date, the purpose of the program, as well as what must be input to the program as well as what will be output (see program page 38, sec 01/Volume 1.java) *** Inline comments occur within your code to explain any code that might need some clarification as to what it is intended to accomplish. This is particularly applicable for code that might not be self-explanatory. (see program page 38, sec 01/Volume 1.java)

Answer 1

JAVA program for the provided problem statement

/* JAVA program to identify the Season based on the month and day number */

// import utility classes
import java.util.*;

// Main class
public class Main
{
// create a static object of Scanner class for user input
static Scanner in = new Scanner(System.in);
  
// this method displays seasons names for February month
public static void february(){
  
// first provide valid day number
int day = 0;
while(day<1 || day>28){
System.out.print("Enter Day: ");
day = in.nextInt();
if(day<1 || day>28){
System.out.println("Invalid day !!, Please enter number in range [1-28]\n");
}
}
  
// if day number is greater than 15 then it is Spring else it is Winter
if(day <= 15){
System.out.println("This is Indian Winter Season.");
}else{
System.out.println("This is Indian Spring Season.");
}
}
  
// this method displays seasons names for April, june, September, November
public static void monthsWith30thDays(int month){
// first provide valid day number
int day = 0;
while(day<1 || day>30){
System.out.print("Enter Day: ");
day = in.nextInt();
if(day<1 || day>30){
System.out.println("Invalid day !!, Please enter number in range [1-30]\n");
}
}
  
if(month == 4 || month == 6){
// display for April and june
System.out.println("This is Indian Summer Season.");
}else if(month == 9){
// display for September
System.out.println("This is Indian Autumn Season.");
}else{
// display for November
System.out.println("This is Indian Prewinter Season.");
}
}
  
// this method displays seasons names for remaining 7 months
public static void monthsWith31stDays(int month){
// first provide valid day number
int day = 0;
while(day<1 || day>31){
System.out.print("Enter Day: ");
day = in.nextInt();
if(day<1 || day>31){
System.out.println("Invalid day !!, Please enter number in range [1-31]\n");
}
}
  
if(month == 1 || (month == 12 && day>15)){
// display for January and late December
System.out.println("This is Indian Winter Season.");
}else if(month == 3){
// display for March
System.out.println("This is Indian Spring Season.");
}else if(month == 5){
// display for May
System.out.println("This is Indian Summer Season.");
}else if(month == 7 || month == 8){
// display for July and August
System.out.println("This is Indian Monsoon Season.");
}else if(month == 10){
// display for October
System.out.println("This is Indian Autumn Season.");
}else{
// display for early November
System.out.println("This is Indian Prewinter Season.");
}
}
  
// driver method
   public static void main(String[] args)
   {
   // first, take user input for month number
   // if user does not enter month number in a range [1-12],
   // it displays an error message and again asks for correct input
int month = 0;
while(month<1 || month>12){
System.out.print("Enter Month: ");
month = in.nextInt();
if(month<1 || month>12){
System.out.println("Invalid month !!, Please enter number in range [1-12]\n");
}
}
  
/* According to Indian weather:-
16 December - 15 February := "Winter"
16 February - 31 March := "Spring"
1 April - 30 june:= "Summer"
1 July - 31 August := "Monsoon"
1 September - 31 October := "Autumn"
1 November - 15 December := "Prewinter"
*/
  
/* Note-
February has 28 days (assuming no leap year)
April, June, September, November has 30 days
the remaining month of the year has 31 days
*/
  
// therefore, let's create three function using nested if-else
if(month == 2){
// for 28 days month
february();
}else if(month == 4 || month == 6 || month == 9 || month == 11){
// for 30 days months
monthsWith30thDays(month);
}else{
// for 31 days months
monthsWith31stDays(month);
}
   }
}

JAVA program Screenshots

JAVA program Output Screenshots