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PayPal Interview Experience | Set 11

    Round 1:
  1. Write a program to find the subsets of an array ?
  2. Write a program to find the least ancestor node of a binary tree / bst ?
  3. Write a program to find the intersection between 2 arrays ?
  4. Write a program to evaluate a boolean expression i.e String s = “(a == b) || (b == c)” ?

Round 2:

  1. Explain optional class in java 8 ?
  2. what is the default thread pool count in tomcat server ?
  3. How GWT works ?
  4. What is the difference between Kafka and IBM MQ or active MQ ?
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