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);
}
}
correct answer
public class Telephone
{
private String number;
private static int quantity;
}
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);
}
}
This is correct Answer
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);
}
}
public class Telephone {
private String number;
private static int quantity;
private static double total;
public static String makeFullNumber(String phoneNumber, int areaCode) {
return String.valueOf(areaCode) + “-” + phoneNumber;
}
}