Name few java util classes introduced with java 8 ?
What is HashTable?
Can singleton class be cloned?
Explain garbage collection in java?
What is the driver class?
how to handle exceptions in core applications?
interface X{ void m1(); void m2(); } class Child2 extends Object implements X { public void m1(){ System.out.println("Child2 M1"); } public void m2(){ System.out.println("Child2 M2"); } } public class ParentChildInfterfaceDemo { public static void main(String[] args){ X x = new Child2(); X x1 = new Child2(); x.m1(); x.m2(); x.equals(x1); } } Will the above code work? If yes? Can you please explain why the code x.equals(x1) will work as the equals method is called on interface reference vaiable?
How many types of array are there?
What modifiers are used for interface declaration?
What is aggregation and composition ?
Can you call one constructor from another if a class has multiple constructors?
how to print output with out using sop statements
Explain the difference between collection api and stream api in java8?