Java - Data structure - Queue/Stack

Queue

First in First out

.add 

.remove / .poll (get the first element)

.peek  (check the first element but not take it)



Stack

Lsat in First out

.push

.search (Return int)

.remove / .pop(get the first element)

.peek  (check the first element but not take it)


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MAP - Sort with stream

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