int booksInPosession = 0;
public void checkOut() { booksInPosession++; }
public void checkIn() { booksInPosession--; }
In this way booksInPosession will keep the number of books currently...
Type: Posts; User: jps
int booksInPosession = 0;
public void checkOut() { booksInPosession++; }
public void checkIn() { booksInPosession--; }
In this way booksInPosession will keep the number of books currently...