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What does the constructor do with the parameters it receives? What internal variables does it assign their values to?
There must be a constructor with code that assigns the passed variables to local...

No, I think you've got it. Your explanation fits very well.

But why is an OP looking at source???

Good observation. It can be hard figuring out what the h... an OP is asking.

Why are you adding the {this(null,null); to the above description of the syntax for calling a constructor?


What are you referring to here? Where have you seen source code like this?

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