albert's blog

Question:  What is the difference between an "empty" value and a "null" value?  Answer:  An empty string is treated as ...

Keep the installation structure SIMPLE.  Always get rid of old files.  Automate it  Don’t over do it with the symlinks Delete everythi...

1. The all code is crap, except mine, attitude. 2. The “I fix that in a second” catastrophe. 3. The “That will only take a second” miscon...

1: You need to know what you’re measuring Frederick Brook says, milestones should be objectively measurable. If you do not have valid meas...

Motivation If you’re not growing, you’re dying… Confidence Good developers are usually quite confident in their abilities. Why? Becau...

Requirement 報表輸出結果，應該依序輸出「營業事業所得稅」、「綜合所得稅」、「遺產稅」、「贈與稅」、「貨物稅」、「菸酒稅」、「證券交易稅」、「期貨交易稅」、「營業稅」、「特銷稅」。如果沒有資料，該稅別要顯示出來，數字要顯示0。結果如下， 根據us...

Context 以下是本案的project structure: 所有的jrxml放在jasperreports folder中，當jrxml有異動，處理程序如下： 1. 執行maven build 2.  將jrxml  compile成jasper file會搬到...

Requirement 在報表呈現的內容，每筆資料之間，需要有間隔的虛線如下 Problem 原本iReport designer中的作法，是將line放在detail band中的fields下方，screenshot如下： 但是此舉，在最後一筆資料，也會出現分...

對於project manager這個角色，到底需不需要有技術能力，一直是常在爭論的議題。 這篇文章倒是給了一個不錯的答案：『有會更好』 他提到了，如果是technical project manager可以帶來幾個好處 遇到問題的時候，他更能掌握問題的難度，更能掌...

Predictability Do it once and do it right, and there will be less re-work, less variation in productivity and better performance overall. ...

1. Read Other People’s Code Reading other people’s code will allow you to understand different points of view in problem solving as well a...

Looking for your first position in the software world?  Want to know more about developer's life? Here present you with 6 essential po...

1. Be a perfectionist If you always look for that perfect design (nothing wrong with this, by the way) you will find yourself spending...

IBM has released the  WebSphere Application Server Performance Tuning Toolkit  that gives the ability to monitor  multiple  WebSphere Applic...

Problem When I export my report to pdf format, the data split into multiple pages. The report header should print for each page, ...

發掘部屬強項 : 了解部屬的優點，才能適才適所、將對的人放在正確的位置上，以發揮更大的生產效能 與部屬分享資訊 : 了解公司的使命、清楚該為何而戰 傾聽部屬心聲 : 唯有放下成見，願意閉上嘴巴、聆聽部屬心聲，主管才能對員工產生影響力，創造更大的績效 保護部屬 ...

Remember the basics :  If you forget the basics of a programming language, you lose your foundational knowledge.   Always assume the wors...

Requirement We have five input text fields in this page. As we filled in 3 characters in dlv_unit(移送單位), system should automaticall...

Requirement Utilize JasperReports to print name and adrress on envelope. Name and addess should print from top to down. Concerning tex...

Problem I'm writing a report which needs to be exported to pdf and CSVformat. when output format is CSV, it should be ignore paginati...