在HashMap中添加key==null的Entry时会调用putForNullKey方法下面是HashMap的put方法: public V put(K key, V value) { if (table == EMPTY_TABLE) { inflateTable(threshold); } if (key ==
OriginaoQuestion:WriteasubroutinenamedisPalindromewhichreturnstrueifthewordpassedasaparameterisapalindromee.g.madamisapalindrome.Writeamainprogramwhichasksausertoenterawo...Originao Question:Write a s...