When an object is concatenated with a String, ________.
A) a compilation error occurs
B) a runtime error occurs
C) the object's toString method is implicitly called to obtain the String representation of the object
D) the object's class name is concatenated with the String

Question

Quizplus · Accepted Answer

When an object is concatenated with a String, the object's toString method is implicitly called to obtain the String representation of the object. This allows the object to be combined with the String in a meaningful way. In Java, every class inherits the toString method from the Object class, so even if a class doesn't define its own toString method, it still has one that can be used for concatenation. Therefore, there is no compilation or runtime error, and the class name is not concatenated with the String.

When an Object Is Concatenated with a String, ________