import java.io.Serializable;
class PhoneNumber implements Serializable {
public PhoneNumber(String areacode, String number) {
this.areacode = areacode;
this.number = number;
}
// Read a phone number from the keyboard
// Read a phone number from the keyboard
public static PhoneNumber readNumber()
{
FormattedInput in = new FormattedInput();
int maxTries = 5; // Maximum number of errors in input
String area = null; // Stores the area code
String localcode = null; // Stores the local code
for(;;) // Loop to allow retries
{
try {
// Read in the area code
if(area == null) // If there's no area code
{
System.out.println("\nEnter the area code:");
area = Integer.toString(in.readInt()); // read one from the k/b
}
// Read in the number
if(localcode == null) // If there's no local code
{
System.out.println("Enter the local code:");
localcode = Integer.toString(in.readInt()); // read one from the k/b
}
System.out.println("Enter the number:");
String code = Integer.toString(in.readInt()); // Read last part of the number
localcode += " " + code; // and append to local code
return new PhoneNumber(area,localcode);
} catch(InvalidUserInputException e) {
if(--maxTries == 0) // If there were maxTries errors
{
System.out.println("Maximum number of errors exceeded. Terminating...");
System.exit(1); // then quit
}
System.err.println(e.getMessage()+"\nTry again");
continue; // otherwise try again
}
}
}
public String toString() { return areacode + ' ' + number; }
public int hashCode() {
return 7*areacode.hashCode()+13*number.hashCode();
}
public boolean equals(Object phoneNumber) {
PhoneNumber pn = (PhoneNumber)phoneNumber;
return areacode.equals(pn.areacode) && number.equals(pn.number);
}
private String areacode;
private String number;
}
