Below are core java qns he asked in round 1
1) Can we write privtae class in Java - Yes, inner class can be private
2) How to make a class immutable
3) Can we run multiple JVMS in one JRE
4) What is JVM and JRE
5) How do you put a message in Queue (Related to JMS), requirment was for ESB Java developer.

In second round he asked about Singleton design pattern impmentation, and asked me to write a simple program. Which I couldnot do. Later he finished the Interview as I was not fit for the role.

Question

Below are core java qns he asked in round 1
1) Can we write privtae class in Java - Yes, inner class can be private
2) How to make a class immutable
3) Can we run multiple JVMS in one JRE
4) What is JVM and JRE
5) How do you put a message in Queue (Related to JMS), requirment was for ESB Java developer.


In second round he asked about Singleton design pattern impmentation, and asked me to write a simple program. Which I couldnot do. Later he finished the Interview as I was not fit for the role.

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