Java Collections Cheat Sheet (DRAFT) by hemanthreddy519

add(el)	lastIn­dexOf()
add(idx, el)	listIt­era­tor()
addAll­(Co­lle­ction c)	listIt­era­tor­(idx)
clear()	remove­(idx)
contai­ns(el)	remove(el)
contai­nsA­ll(­Col­lection c)	replac­eAl­l(U­nar­yOp­erator op)
equals­(List l)	retain­All­(Co­lle­ction c)
get(idx)	set(idx, el)
hashCode()	size()
indexO­f(el)	sort(C­omp­arator c)
isEmpty()	subLis­t(from, to)
iterator()	toArray()

addFir­st(el)	peekFi­rst()
addLas­t(el)	peekLast()
clone()	poll()
getFirst()	pollFi­rst()
getLast()	pollLast()
offer(el)	pop()
offerF­irs­t(el)	push(el)
offerL­ast(el)	remove­First()
peek()	remove­Last()

clear()	keySet()
contai­nsK­ey(key)	put(key, val)
contai­nsV­alu­e(v­alue)	putAll(Map m)
entrySet()	putIfA­bse­nt(key, val)
equals(Map m)	remove­(key)
get(key)	remove­(key, val)
getOrD­efa­ult­(key, defaul­tValue)	replac­e(key, val)
hashCode()	size()
isEmpty()	values()

add(el)	iterator()
addAll­(Co­lle­ction c)	remove(el)
clear()	remove­All­(Co­lle­ction c)
contai­ns(el)	retain­All­(Co­lle­ction c)
equals(Set s)	size()
hashCode()	toArray()
isEmpty()

add(el)	iterator()
addAll­(Co­lle­ction c)	offer(el)
clear()	peek()
contai­ns(el)	poll()
contai­nsA­ll(­Col­lection c)	remove()
element()	remove­All()
equals­(Queue Q)	retain­All()
hashCode()	size()
isEmpty()	toArray()