Pergunta de entrevista da empresa Altimetrik

The interviewer asked me the following questions : Introduction, Difference between hashtable and hashMap. wake notify and notifyAll belongs to which class ?. Asked similar methods which class they belong to . Coding : create a thread pool of 3 using executorService and perform an operation using all 3 threads. ConcurrentModification Code Example - output. Spring boot basic annotations. Why functional Interface have only one abstract method. Fail Fast & Fail Safe Iterator.