Q1. How can you get to know that
whether one object belongs to a particular class ?
Ans : using instanceof
The
instanceof operator tests whether an object has
in its prototype chain theprototype property
of a constructor.
Eg :
We have a class test with a object
Test t1= new Test();
And another class Testing t2 = new Test();
If we have to find that whether t2 belong to Test class or
not we will use
System.out.println(t2 instanceof Testing); //print true
System.out.println(t2 instanceof Test); //printfalse
Java Collections Interview Questions
