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Write a program for simple ETL(Extraction, Transformation and Loading) Implementation, the output does not matter, your coding approach matter. The scenario is, read file(s) for one directory, perform some transformation on the data and write it to another directory. They emphasize on what you do if the source and destination is changed to something else like SQL DB and you can add more transformations to the program. They want all the component to be independent and some insane design implementation on injecting transformation side.
avatar

Java Lead

Interviewed at Springer Nature

4★
Jun 25, 2017

Write a program for simple ETL(Extraction, Transformation and Loading) Implementation, the output does not matter, your coding approach matter. The scenario is, read file(s) for one directory, perform some transformation on the data and write it to another directory. They emphasize on what you do if the source and destination is changed to something else like SQL DB and you can add more transformations to the program. They want all the component to be independent and some insane design implementation on injecting transformation side.

Jpa and hibernet diff.when we use hibernet ?when we use jpa? How to maintain connectionpooling?needs to know design pattern with examples.code quality and code formaters and tools for using unit testing.how you test the performance of your code?multi threading,synchronization,spring security,db designing of your project.what steps needs to take care while reviewing the code.scrum agile metholody ,jira.other than this they will ask the questions related the some scenarios.
avatar

Java Developer

Interviewed at BAE Systems

3.9★
Sep 28, 2017

Jpa and hibernet diff.when we use hibernet ?when we use jpa? How to maintain connectionpooling?needs to know design pattern with examples.code quality and code formaters and tools for using unit testing.how you test the performance of your code?multi threading,synchronization,spring security,db designing of your project.what steps needs to take care while reviewing the code.scrum agile metholody ,jira.other than this they will ask the questions related the some scenarios.

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