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7
Task
Java Multithreading, level 5, lesson 2
Locked
New functionality!
Using an enum, implement the getLetterPosition() method, which must return a letter's position. The position of the letter A is 1.
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14
Task
Java Multithreading, level 5, lesson 2
Locked
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.
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28
Task
Java Multithreading, level 5, lesson 2
Locked
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.
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