作者查詢 / AI3767
作者 AI3767 在 PTT [ java ] 看板的留言(推文), 共190則
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3F→:你是要寫accessToken 和 "json" 吧?04/26 01:05
1F推:很久以前我也做過+和sb測試,有發現速度一樣, 但,sb方便用於04/01 23:12
2F→:在不同程式片段做接合. +比較適合所需字串一次性生成時04/01 23:15
12F推:那篇在迴圈內+=, 不是一次性加起來, 確實很高可能造成變慢04/01 23:46
2F推:剛測了三個自行改的+的用法,和原文網址的回應有所呼應,04/01 22:53
3F→:若是全部+都在同一敘述,速度會和SB一樣. 這樣看來, 原plus04/01 22:55
5F→:碼中, result做了兩次assignment, 因此速度變慢了04/01 22:57
7F→:我沒看bytecode. 只是猜compiler沒做好佳化,每次的assignme04/01 22:59
8F→:nt, 可能都轉譯去new 一個SB出來04/01 23:01
3F推:這樣interface多重繼承不會有問題嗎@@?03/28 00:52
1F推:悄悄說:awt是all weak tool的縮寫 (誤03/18 13:08
1F→:因這碼執行在swing的event內. setText也會在內,會等結束後,12/19 01:17
3F→:event的thread才會更新GUI. 請把這碼改到另一Thread執行12/19 01:19
9F→:呃?這碼不就要它0.1s跳一次? 另開一個Thread給它run就好了12/20 00:44
4F推:java obfuscation, 像是ProGuard. 不論如何,沒有完美的,12/17 00:55
5F→:只是增加破解困難度. 多少大產品都被破了12/17 00:57
5F→:也許需要和C版一樣 來個 "Java 語言新手十誡" 吧XD11/30 21:42
3F推:請問一下,300mb,若1行1筆資料30byte,不是大約有1000萬筆?08/27 05:05
5F推:我自己生成326mb,約984萬筆, 用String要用2.8g,byte[]則1g08/27 15:50
8F推:在java7可以縮短一點點 XD06/18 11:23