the associative array to get the value from
the key whose associated value is to be returned
the value to which the specified key is mapped, or
null
if this map contains no mapping for the keyAssertException if any paramter is invalid NoSuchElementException if the given key could not be found
Returns the value to which the specified key is mapped, or ($D_CODE null) if this associative array contains no mapping for the key.
More formally, if the specified associative array contains a mapping from a key
k
to a valuev
such that , then this method returnsv
; otherwise it returnsnull
. (There can be at most one such mapping.)