Question: Write a simple query to show data in a single resultset. Resultset should have department table data first order by deptname and followed immediately by sub-department table data also ordered by deptname. Both tables data should be wrapped in a single resultset, with the above criteria.
Q. What is the difference between Singleton and Immutable object
how are you? Have you ever worked
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(); } }
Write a method to remove even numbers from list without using any other collection.
How concurrent Hashmap works ?
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?
1. Java 8 questions 2. Overloading, overriding 3. Exception 4. Internal working of java 8 stream api 5. Java 8 date & time que and internal working Overall easy questions, basic core java interview questions Client interview - hashmap , linked hashmap internal working
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.
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