Question

package week_3;

/**

 Write a program that can help decide if a particular programming project
 is best solved using a Waterfall or Agile methodology.

 Your program should ask the user:

 • How many programmers will be on the team   [ More than 30 programmers -> Waterfall ]
 • If there needs to be firm deadlines and a fixed schedule  [ Yes - > Waterfall ]
 • If the programmers have experience in requirements, analysis and testing as well as coding [ Yes - > Agile ]
 • If there are stringent quality control requirements   [ Yes -> Waterfall ]
 • If early integration is desirable   [ Yes -> Agile ]
 • If the customer will be requiring working models early in the process  [ Yes -> Agile ]
 
 There's a `yesNoInput` method in the InputUtils library that returns boolean values from yes/no user input.
 (If the user types 'n' or 'no', the method returns false. If the user types 'y' or 'yes' the method returns true.)
 
 Write a method called agileOrWaterfall,
 which takes this data as integer and boolean arguments.
 **The arguments should be provided in the order given above**.
 `agileOrWaterfall` will return a String, a suggestion on whether Agile, or Waterfall, or either, may be is best.
 
 To decide, check how many factors are in favor of Agile. If there are 4 or more factors in favor of Agile, then return `AGILE`.
 If there are 4 or more factors in favor of Waterfall, return `WATERFALL`.
 If there are an equal number of factors in favor of Agile and Waterfall, returns `EITHER`.
 
 Notice that there are three global constants AGILE, WATERFALL and EITHER.
 Your agileOrWaterfall method should return one of these Strings.
 
 Use your agileOrWaterfall method in your program to suggest which methodology to use.

 Your main method should do the task of asking questions and printing the result.
 Your agileOrWaterfall method should be given the relevant data, and do the processing,
 deciding, and returning the result.

 */
public class Question_3_Agile_Or_Waterfall {

    public final String AGILE = "Agile";
    public final String WATERFALL = "Waterfall";
    public final String EITHER = "Either";

    // don't modify this part
    public static void main(String[] args) {
        new Question_3_Agile_Or_Waterfall().methodology();
    }


    public void methodology() {

        // TODO Ask user the 6 questions
        // TODO Call the agileOrWaterfall method
        // TODO Use the suggestion agileOrWaterfall returns to print a message for the user.

    }


    // TODO write a public agileOrWaterfall method. It should have this name, and take
    // the 6 arguments needed, in the same order given in the description.
    // TODO this function should a String - one of the three Strings AGILE, WATERFALL or EITHER.
    // For example, if your method determines that Agile is best, write a statement like
    //      return AGILE;  // return the value in the AGILE constant

}

Answer 1

ANSWER

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */

class Question_3_Agile_Or_Waterfall {

    public String AGILE = "Agile";
    public String WATERFALL = "Waterfall";
    public String EITHER = "Either";

    public static void main(String[] args) {
        new Question_3_Agile_Or_Waterfall().methodology();
    }

    public void methodology() {

        // TODO Ask user the 6 questions
        String ch[] = new String[6];
        Scanner sc = new Scanner(System.in);
        System.out.println("How many programmers will be on the team?:");
        int n = sc.nextInt();
        //[More than 30 programmers->waterfall]
        if (n > 30)
            ch[0] = "Waterfall";
        else
            ch[0] = "Agile";

        // If there needs to be firm deadlines and a fixed schedule [ Yes - > Waterfall ]
        System.out.println(" If there needs to be firm deadlines and a fixed schedule:");
        if (sc.next().charAt(0) == 'y')
            ch[1] = "Waterfall";
        else
    ch[1] = "Agile";
        //If the programmers have experience in requirements, analysis and testing as well as coding[Yes->Agile]
        System.out.println("If the programmers have experience in requirements, analysis and testing as well as codig:");
        if (sc.next().charAt(0) == 'y' )
            ch[2] = "Agile";
        else
    ch[2] = "Waterfall";
        //if there are stringent quality control requirements[Yes->waterfall]
        System.out.println("if there are stringent quality control requirements:");
        if (sc.next().charAt(0) == 'y' || sc.next().charAt(0) == 'Y' )
            ch[3] = "Waterfall";
        else
            ch[3] = "Agile";
        //If early integration is desirable[yes->Agile]
        System.out.println("If early integration is desirable:");
        if (sc.next().charAt(0) == 'y' || sc.next().charAt(0) == 'Y' )
            ch[4] = "Agile";
        else
            ch[4] = "Waterfall";

        //If the customer will be requiring working models early in the process[Yes->agile]
        System.out.println("If the customers will be requiring working models early in the process:");
        if (sc.next().charAt(0) == 'y' || sc.next().charAt(0) == 'Y' )
            ch[5] = "Agile";
        else
            ch[5] = "Waterfall";

        // TODO Call the agileOrWaterfall method
        String suggestion = agileOrWaterfall(ch);
        // TODO Use the suggestion agileOrWaterfall returns to print a message for the user.
        System.out.println("Programing project is best solved using" + suggestion + "methodology");
    }

        // TODO write a public agileOrWaterfall method. It should have this name, and take
        public String agileOrWaterfall(String ch[]){
            // the 6 arguments needed, in the order given in the description.

            // TODO this function should return one of the three Strings AGILE, WATERFALL or EITHER.

            int a = 0, w = 0, e = 0;
            for (int i = 0; i < 6; i++)
            {
                if (ch[i] == AGILE)
                    a++;
                if (ch[i] == WATERFALL)
                    w++;
                if (ch[i] == EITHER)
                    e++;
            }
            System.out.println(Arrays.toString(ch));
            if (a > 3)
                return AGILE;
            if (w > 3)
                return WATERFALL;
            else
                return EITHER;
          
        }
    }