Write the definition of a class Telephone. The class has no constructors, one instance variable of type String called number, and two static variables. One is of type int called quantity; the other is of type double called total. Besides that, the class has one static method makeFullNumber. The method accepts two arguments, a String containing a telephone number and an int containing an area code. The method concatenates the two arguments in the following manner: First comes the area code, then a dash, then the telephone number. The method returns the resultant string.

LANGUAGE: JAVA

CHALLENGE:

Write the definition of a class Telephone. The class has no constructors, one instance variable of type String called number, and two static variables. One is of type int called quantity; the other is of type double called total. Besides that, the class has one static method makeFullNumber. The method accepts two arguments, a String containing a telephone number and an int containing an area code. The method concatenates the two arguments in the following manner: First comes the area code, then a dash, then the telephone number. The method returns the resultant string.

SOLUTION:

public class Telephone{
   private String number;
   private static int quantity;
   private static double total;
   public static String makeFullNumber(String telephone, int area){
      return (area + ""-"" + telephone);
   }
}

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