Use Java programming Thank you very much Programing requirement for: Safety Aler

Question

Use Java programming Thank you very much

Programing requirement for: Safety Alert System Version 01 I. Project and class name Create a new project name: yourfirst lastname program01 (you must include your name in the project name) Create a new class name: Safety Alert V0 1 II. Requirement i. Input Prompt appropriate messages that asking use to enter: city name, season, temperature, and raining. Input validation: your program has to valid the user input and prompt specific message when user enter invalid input. Base on following validation: City name: only can be string of letters, not containing number. Maximum length is 20 Season: only can be either SUMMER or WINTER Temperature is in double Raining is in integer number if the program found an invalid input, prompt a specific message that tell which input is invalid and what is the correction format ofthat input should be, then STOP the program. That Page 2 of 4

Explanation / Answer

import java.util.*;

class Safety_Alert_VO_1
{
   private static double CONST_MIN_TEMP_WINTER = -20;
   private static double CONST_MAX_TEMP_SUMMER = 127;
   public static void main (String[] args)
   {
       Scanner scan = new Scanner(System.in);
       boolean road_ice,call_for_help,flood,tminchange,tmaxchange;
       road_ice = false;
      
       call_for_help = false;
       tminchange = false;
       tmaxchange = false;
       String stay_inside = "no";
      
       System.out.println("Enter city name ");
       String city = scan.next();
       if ((city.contains("[a-zA-Z]+") == true) || (city.length() > 20))
       {
           System.out.println("Error: city name should be a string with not more than 20 characters");
           System.exit(0);
       }
      
       System.out.println("Enter season : ");
       String season = scan.next();
       if(!(season.equals("WINTER") || season.equals("SUMMER")))
       {
       System.out.println("Error Season can be SUMMER or WINTER");
       System.exit(0);
       }
       System.out.println("Enter temperature : ");
       double temp = scan.nextDouble();
      
       System.out.println("Enter raining : ");
       int rain = scan.nextInt();
      
       switch(season)
       {
           case "WINTER": if((temp < 32)&&(rain > 0))
                           road_ice = true;
                           if((temp < 5)||(rain>250))
                           stay_inside = "yes";
                           else
                           stay_inside = "no";
                           if((temp<-15)||(rain>500))
                           call_for_help = true;
                           if(temp<CONST_MIN_TEMP_WINTER){
                           CONST_MIN_TEMP_WINTER = Math.min(temp,CONST_MIN_TEMP_WINTER);
                           tminchange = true;
                           }
           case "SUMMER": if(rain>350)
                           flood = true;
                           if((temp>120)||(rain>250))
                           stay_inside = "yes";
                           else
                           stay_inside = "no";
                           if((temp>125)||(rain>500))
                           call_for_help = true;
                           if(temp>CONST_MAX_TEMP_SUMMER)
                           {
                           CONST_MAX_TEMP_SUMMER = Math.max(temp,CONST_MAX_TEMP_SUMMER);
                           tmaxchange = true;
                           }
       }
       System.out.println("CS103 Spring 2017");
       System.out.println("Student      : first and last name ");
       System.out.println("Index Number : ");
       System.out.println("The Cities Safety Alert System V01");
       System.out.println("City Name : "+city);
       System.out.println("Season    : "+season);
       System.out.println("Temperature : "+temp+ "              Raining : "+rain);
       System.out.println("Road icing : "+road_ice+"          Stay inside : "+stay_inside);
       if(tminchange == true)
       System.out.println("This is the new minimum temperature record");
       if(tmaxchange == true)
       System.out.println("This is the new maximum temperature record");
       if(call_for_help == true)
       System.out.println("Call 911 now!!");
   }
}

output:

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