10
Nhiệm vụ
Java Collections, mức độ, bài học
Fix coding errors
The NameIsEmptyException and NameIsNullException exceptions must be checked.
All types of exceptions must be handled.
Don't change the implementations of the main() and getNumberOfCharacters() methods.
Only the order of the catch blocks in the main() method should be changed.
10
Nhiệm vụ
Java Collections, mức độ, bài học
Checked exceptions
Write the implementation of the veryComplexMethod() method.
It must always throw a checked exception.
Using the keyword throw to throw an exception is explicitly forbidden.
10
Nhiệm vụ
Java Collections, mức độ, bài học
Runtime exceptions (unchecked exceptions)
Write the implementation of the methodThrowsClassCastException() method. It must
always throw a ClassCastException.
Write the implementation of the methodThrowsNullPointerException() method. It must
always throw a NullPointerException.