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Now I feel like Java has grown like an ocean. I don't know how to approach Java. I know oops concepts. I am in support projects in unix for last two years. No Java code experience. I just know what is abstraction, garbage collection, exception handling etc like stuffs about Java.
Now if I want to go for a Java interview, they ask like Java with struts, springs, hibernate etc. I don't what are all these about?
What is the hierarchy or overview of all these things? Could you explain it like how this Java tree with its branches?