作者查詢 / choufeng
作者 choufeng 在 PTT [ java ] 看板的留言(推文), 共34則
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8F→:恩恩~感覺你是JAVA新新手厚! 文件或書要先多讀一點08/10 20:45
8F→:thread 不是開越多就越好 越快03/31 22:54
7F推:通常遇到需求我會喜歡去找找 Apache 有無相關的 solution03/31 22:29
7F→:檢查程式碼是否有地方不小心使用到全形空格03/31 21:37
4F推:那要不如幫你轉貼至SOFT_JOB版吧....適合點08/07 09:25
1F推:詳細原理過程我不是那麼瞭解 但基本上是因為你改寫了05/02 12:57
2F推:hashCode這個方法 因為在remove時應是利用物件的hashcode05/02 13:01
3F推:而你改寫了hashCode方法 變成每次hashCode回傳值都為i05/02 13:03
4F→:這個i又是可能變動,和當時物件存入時所用的索引不相同,因05/02 13:05
5F推:此雜湊出來的值自然找不到物件所在set的位置05/02 13:07
8F推:我覺得這應該又是個SCJP考題 懂不懂Hash原理是其次 主要05/02 14:20
9F→:是要考懂不懂怎麼運作的05/02 14:21
14F推:F. 605/01 08:45
2F推:只有屬於Runtime的Exception可以被拋出 其它的Exception04/30 23:04
3F→:在繼承覆寫的寫法上就不能被拋出了喔!!04/30 23:06
4F推:IndexOutOfBounds,NullPointer等Exception都屬Runtime04/30 23:09
5F→:Exception04/30 23:11
3F推:JSmooth may compile bytecode into executable file,04/29 23:30
4F→:but users or clients want to perform this execution04/29 23:31
5F→:file also need to install JRE first. is that so ?04/29 23:33
2F推:樓上我也幫你在Soft_Job版置底了 因為我也是JAVA愛好者^^04/16 09:13