What is the difference b/w 2d array and hashmap?Where we have to use this?Explain ? Thanks in advance

jahir

• Apr 9th, 2015

Array is fixed size and it has doesnt fixed data structure so there is no ready-mate methods for operating we write the explicitly write code burden for the programmer. Advantage: performance wise i...

kalyankarri

• Dec 26th, 2014

2d array is fixed in size ,hashmap size is not fixed 2d array rep.set of elements a[][],hashmap is (key,value) pair in 2d searching is slow ,it visits each n every element ,searchng is based on key ...

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