Programmer-defined exception classes typically should contain 3 constructors:
A) a default constructor, a constructor that receives a string for the error message and a constructor that receives an Exception argument of the inner exception object
B) a default constructor, a constructor that receives a string and a constructor that receives both a string and an exception
C) a constructor that receives a string, a constructor that receives an exception and a constructor that receives both
D) a default constructor, a constructor that receives a string and a constructor that receives a number indicating the line number where the exception occurred

Question

Quizplus · Accepted Answer

The best choice is B because it includes a default constructor, a constructor that receives a string for the error message, and a constructor that receives both a string and an exception. These three constructors provide flexibility for creating exception objects that can include relevant error messages and inner exception objects. The constructor that receives both a string and an exception is especially useful because it allows for creating an exception that includes both a custom error message and an inner exception object for additional context. The constructor that receives a number indicating the line number where the exception occurred is not as commonly used and is not necessary for most exception classes.

Programmer-Defined Exception Classes Typically Should Contain 3 Constructors