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adding objects to HashMap that have duplicate keys

Rachel Glenn
Ranch Hand

Joined: Oct 24, 2012
Posts: 95
If I have a HashMap, and I call .put() several times with the same key..for example..



Then the first put() call will return true and the second put() call will return false because the "Monday" key already exists?
Jayesh A Lalwani
Saloon Keeper

Joined: Jan 17, 2008
Posts: 2588
    
  29

put doesn't return a boolean. put returns the previous value. So, first call will return null and second call will return the first object
 
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