Interview Q&A / Object-Oriented Programming

1. What happens in memory when you write new Student("Asha") in Java?

   new allocates memory for the object on the heap, sets fields to default values, runs the constructor, and returns a reference. The variable on the stack holds only that reference.

   IntermediateQuick answer1 min read
2. What is the difference between a shallow copy and a deep copy of an object?

   A shallow copy duplicates the object but shares the objects it refers to. A deep copy duplicates the whole graph, so the copy shares nothing with the original.

   IntermediateQuick answer1 min read