TreeNode.hashCode() should return value of getLabel()

[rvosa]

This so that nodes can be unique keys in hash tables.

[eightysteele]

Careful. In Java, not overriding hashCode() and equals() together can have
unexpected results:

http://stackoverflow.com/questions/2265503/why-do-i-need-to-override-the-equals-and-hashcode-methods-in-java
On Feb 3, 2013 5:42 AM, "Rutger Vos" notifications@github.com wrote:

This so that nodes can be unique keys in hash tables.

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Reply to this email directly or view it on GitHubhttps://github.com//issues/1.

[rvosa]

Yes, but I already overrode equals() :-)

[eightysteele]

Ha, ok, ok. :) But! Overriding equals and hashbode can be tricky. I totally recommend just dispatching to Guava Objects for this.