[Linux] 使用 sudo 時，出現 “command not found” 的解決之道
各位在 Linux 下使用 sudo 時，是否會出現 “command not found” 的錯誤訊息？ 這是因為預裝的 sudo 在編譯時，–with-secure-path 採用了預設值，而導致原來 User 的 PATH 環境設置項，在 sudo 時被暫時覆蓋。 – …
Gerrit Code Review 架設 – Part 1 – Gerrit 系統設置篇
架設 Gerrit，雖然照著官方網站的 Installation Guide 可以完成些步驟，但還是遇到一些問題。 首先要去下載安裝檔 Gerrit Download 我是用 MySQL，所以需要使用下列初始化， mysql CREATE USER ‘gerrit2’@’localhost’ IDENTIFIED BY …
[Java] What’s the Difference between wait() and sleep()?
下面是從 Android 的 Dalvik 拿來的 code，參考看看他的實作內容， 1329 void dvmThreadSleep(u8 msec, u4 nsec) 1330 { 1331 Thread* self = dvmThreadSelf(); 1332 Monitor* mon = gDvm.threa …
[Java] How to Pass a Primitive-Type Variable by Reference and to Change its Value in the Method in Java?
In Java, it doesn’t use pointer for representing the variables. The primitive type of variable is used to store a value. For example, int varInt = 1; Th …
[Android] Security Permission Issue in Android
If you follow the API in Android SDK to develop Android application, you will encounter the some permission can’t be used even if you have been defined th …
2011 Computex 展覽紀錄
南港展區 搭乘捷運藍線，往南港展覽館方向前進，一站接著一站過去，心裡好奇著今年的 Computex 會有什麼樣的新花招出現，在捷運南港展覽館下車後，與同事們於門口會面，從南港展覽館大門進入大廳的當下，一點興奮感也沒有，現場看起來空蕩蕩的，回想去年，今年的人潮似乎不比往年多，是否意味著今年沒有太多令人感興趣的 …
A Eclipse’s CDT Bug Makes It Crashed
Few days ago, I use the Eclipse IDE for developing C/C++ program.But I had a problem… When I opened a C/C++ project, it will crash.I figure out the first …
[Linux] How to Undelete Files in Linux
In the article “Undelete Files on an ext3 or ext4 File System“, the poster shows the steps of how to undelete files approach when you use the ext3 o …
[N900] Cannot Upgrade the Firmware on Nokia N900
Much people have a bad experience when they want to upgrade the firmware on Nokia N900. The most problem is the flasher waits for USB device, whe …
[Android] Background Video Recorder on Android
In the Android, most developers provide the camera or video recorder application in the Android Market, but they only record the video on the foreground view. I …