Q. What is the difference between Singleton and Immutable object
Technical Lead Senior Java Software Engineer Interview Questions
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How do you nullify or remove the unused objects from memeory?
what is the output public class Barclays { static class A{ A(){ f(); } public void f(){ System.out.println("A ctor"); } } static class B extends A{ B(){ f(); } public void f(){ System.out.println("B ctor"); } } public static void main(String[] args) { B b = new B(); b.f(); A a = new A(); a.f(); } }
Yeah, it is not thread safe, you can call it just a certain number of times, what would you do? There is some feature in the language, but I'm trying to see what you think.
Spring default scope
how are you? Have you ever worked
Program : find duplicate string from list
How concurrent Hashmap works ?
What is the difference between String Builder and String Buffer
-Can a class be final? - Difference between Application context and bean factory?
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