Tutorials Shared by the Internet Community
|Top Tutorials||New Tutorials||Submit||Login||Register|
Tutorial Basic Detail
Total Hits: 13103
Total Votes: 139 votes
Average Rating: 2.81 out of 5
Description:This question oftenly asked in interview to check whether candidate understand correct usage of collection classes and aware of alternative solutions available.
1. The HashMap class is roughly equivalent to Hashtable, except that it is unsynchronized and permits nulls. (HashMap allows null values as key and value whereas Hashtable doesn't allow nulls).