How do you nullify or remove the unused objects from memeory?
Ingeniero De Software Java Interview Questions
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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(); } }
Write a method to remove even numbers from list without using any other collection.
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.
program
how are you? Have you ever worked
What is the difference between String Builder and String Buffer
Draw merge sort on paper.
1. Implement Comparable Interface? 2. Write a Employee class and sort its properties age and Emp name? 3. How actually hashmap works in Java? 4. How the size of ArrayList grows dynamically?
How concurrent Hashmap works ?
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