Question

what is wrong with the following code?

public class EightBall {
private static Scanner scanner = new Scanner(System.in);
private static Random rnd = new Random();
  

public static String getAnswer(int category, int answer) {

if (category >= 74) {
  
  
if (answer == 0) {
return "As I see it, yes." ;
}
else if (answer == 1) {
return "Signs point to yes." ;
}
else if (answer == 2) {
return "Outlook good." ;
}
else if (answer == 3) {
return "Without a doubt." ;
}
else if (answer == 4) {
return "You may rely on it." ;
}
}
else if (category >= 24 && category < 74) {
  
  
if (answer == 0) {
return "Reply hazy, try again." ;
}
else if (answer == 1) {
return "Ask again later." ;
}
else if (answer == 2) {
return "Better not tell you now." ;
}
else if (answer == 3) {
return "Cannot predict now." ;
}
else if (answer == 4) {
return "Concentrate and ask again." ;
}
}
else if (category < 24) {
  
  
if (answer == 0) {
return "Don’t count on it." ;
}
else if (answer == 1) {
return "My reply is no." ;
}
else if (answer == 2) {
return "My sources say no." ;
}
else if (answer == 3) {
return "Outlook not so good." ;
}
else if (answer == 4) {
return "Very doubtful." ;
}
}

  
}

  
  
  
  

// ************** don't modify below this line ************************
public static void main(String[] args) {
printSpash();
run();
}

public static void printSpash() {
System.out.println("88888888888888888888");
System.out.println("8 Magic 8 Ball 8");
System.out.println("8 Ask away 8");
System.out.println("88888888888888888888");
System.out.println("\nAnd the answer is...\n");
}

public static void run() {
int cat = rnd.nextInt(100);
int an = rnd.nextInt(5);
System.out.println("category num: " + cat + " answer num: " + an);
System.out.println(getAnswer(cat, an)); // gets 0-99 and 0-4 (one less than what you put in)
System.out.println();
System.out.print("Ask another question (Yes/No?): ");
String input = scanner.nextLine();
if(input.toLowerCase().startsWith("n")) { // this ia fun trick, worth remembering it.
System.out.println("Thank you for playing!");
return;
}
System.out.println("\nAnd the answer is...\n");
run(); // continue looping!
}
  

}

Answer 1

Explanation:

• Code in java is given below
• Comment is provided at the place where change has done
• Output is given at the end of the code.

Code in JAVA:

import java.util.Random;
import java.util.Scanner;

public class EightBall {
   private static Scanner scanner = new Scanner(System.in);
   private static Random rnd = new Random();

   public static String getAnswer(int category, int answer) {
       if (category >= 74) {
           if (answer == 0) {
               return "As I see it, yes." ;
           }else if (answer == 1) {
               return "Signs point to yes." ;
           }else if (answer == 2) {
               return "Outlook good." ;
           }else if (answer == 3) {
               return "Without a doubt." ;
           }else if (answer == 4) {
               return "You may rely on it." ;
           }
       }else if (category >= 24 && category < 74) {
           if (answer == 0) {
               return "Reply hazy, try again." ;
           }else if (answer == 1) {
               return "Ask again later." ;
           }else if (answer == 2) {
               return "Better not tell you now." ;
           }else if (answer == 3) {
               return "Cannot predict now." ;
           }else if (answer == 4) {
               return "Concentrate and ask again." ;
           }
       }else if (category < 24) {
           if (answer == 0) {
               return "Don’t count on it." ;
           }else if (answer == 1) {
               return "My reply is no." ;
           }else if (answer == 2) {
               return "My sources say no." ;
           }else if (answer == 3) {
               return "Outlook not so good." ;
           }else if (answer == 4) {
               return "Very doubtful." ;
           }
       }
       /**
       * even though category variable value conditions are covered, still
       * in java if-else conditions can be not covered all i.e not even a single condition be true
       * in some cases. So we need to have default return statement at the end of the function.
       * */
       return "";
   }

   // ************** don't modify below this line ************************
   public static void main(String[] args) {
       printSpash();
       run();
   }

   public static void printSpash() {
       System.out.println("88888888888888888888");
       System.out.println("8 Magic 8 Ball 8");
       System.out.println("8 Ask away 8");
       System.out.println("88888888888888888888");
       System.out.println("\nAnd the answer is...\n");
   }

   public static void run() {
       int cat = rnd.nextInt(100);
       int an = rnd.nextInt(5);
       System.out.println("category num: " + cat + " answer num: " + an);
       System.out.println(getAnswer(cat, an)); // gets 0-99 and 0-4 (one less than what you put in)
       System.out.println();
       System.out.print("Ask another question (Yes/No?): ");
       String input = scanner.nextLine();
       if(input.toLowerCase().startsWith("n")) { // this ia fun trick, worth remembering it.
           System.out.println("Thank you for playing!");
           return;
       }
       System.out.println("\nAnd the answer is...\n");
       run(); // continue looping!
   }

}

OUTPUT:

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