what methods would you overwrite in java.lang.object class
Junior Java Software Engineer Interview Questions
30,835 junior java software engineer interview questions shared by candidates
Describe different collections and their pros and cons, unix and linux commands
how are you? Have you ever worked
How do you nullify or remove the unused objects from memeory?
Q. What is the difference between Singleton and Immutable object
Question: Write pseudo code to validate and evaluate a given arithematic expression Example: a+(b*c)+(d/e) If the input is syntactically wrong, display an error message else display the result
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.
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(); } }
How concurrent Hashmap works ?
Write a method to remove even numbers from list without using any other collection.
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