7
Задача
Java Multithreading, ниво, урок
New functionality!
Using an enum, implement the getLetterPosition() method, which must return a letter's position. The position of the letter A is 1.
14
Задача
Java Multithreading, ниво, урок
Don't take the car to the shop!
Initialize the wheels field using data from loadWheelNamesFromDB().
Throw an exception if the data is invalid.
Hint: if wheels aren't right, then it's not a car!
Don't change the signatures.
28
Задача
Java Multithreading, ниво, урок
Your own enum
Make Column implement the Columnable interface. See the Javadocs for a description of its methods.
Implement the logic of the Column.getVisibleColumns() method.
The Column.configureColumns() method is already implemented. Don't change it.
Don't create additional fields.