Infor Software Developer Associate interview questions

What is Java? What are the key features of Java? What is the difference between JDK, JRE, and JVM? What is the difference between an interface and an abstract class in Java? What is the difference between == and .equals() in Java? What is the difference between ArrayList and LinkedList?

The interview was was of 3 rounds, 1. Telephonic Round 2. Technical Round 3. Managerial Round Once done then HR is supposed to move forward with the salary negotiations. The whole process will take about a couple of weeks in total.