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type of references

 
Greenhorn
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hi
what is meant by soft,weak,phantom references to objects
 
Ranch Hand
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An object is softly reachable if it is not strongly reachable, but is reachable through at least one chain containing a soft reference.
An object is weakly reachable if it is not softly reachable, but is reachable through at least one chain containing a weak reference.
An object is phantom reachable when it has been finalized, but is reachable through at least one chain containing a phantom reference.
 
Consider Paul's rocket mass heater.
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