write a utility that when give a simple object, prints it. a simple object is an object that has only public fields, each field can be of a primitive type (incl. String) or another simple object. follow-up question was how to deal with cyclic referencing between simple objects. when printing should also indent properly the nested objects.

Question

write a utility that when give a simple object, prints it. a simple object is an object that has only public fields, each field can be of a primitive type (incl. String) or another simple object. follow-up question was how to deal with cyclic referencing between simple objects.  when printing should also indent properly the nested objects.

Sigiloso · Accepted Answer

Recurve is a bad solution! Each iteration double the heap

Sigiloso · Answer

in java, iterate over the fields of the provided object using reflection. for each field: if it's primitive or empty - print its name and value. else (it's a nested simple object) make a recursive call on the field value. 
pass between recursive calls the nesting level (starting with 0 and +1 on each recursive call) so you can properly indent. to be able to break cycles, also pass a set of ref of seen objects, checking before a recursive call that the ref object isn't seen yet.

maybe can also break cycles by copying the object to a fresh object before making recursive call?

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