Interfaces
Running, Interfaces, File Structure, Etc.
public boolean callPhone(int phoneNumber) {
if(phoneNumber == myNumber) {
isRinging = true;
System.out.println("Ring ring");
} else {
isRinging = false;
}
return isRinging;
}
Output:
No action taken, desk phone does not have a power button
Ring ring
Answering the desk phone
Mobile phone is powered up.
Melody Ring.
Answering the mobile phone.