Monthly Archives: March 2015

Singleton Design Pattern

Posted on March 30, 2015 by chanmingman

Singleton define as a class of which only a single instance can exist by http://www.dofactory.com/net/singleton-design-pattern. This pattern has no logical diagram because it is not as complicated. You can see in the sample below there is only a simple class, … Continue reading →

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HTTP Error 503. The service is unavailable

Posted on March 29, 2015 by chanmingman

This is a re-blog, I found the existing blog is incomplete. I added additional step to resolve the HTTP Error 503 for SharePoint 2013. You might bump into the error message “HTTP Error 503. The service is unavailable” when you … Continue reading →

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Convert Abstract class to Interface in C#

Posted on March 28, 2015 by chanmingman

This short article showing you how to convert the Abstract class to Interface in C#. If in your abstract class you have totally has no implement on any Method like the simple Proxy Design Pattern below then you should convert … Continue reading →

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Cannot access to Local Area Network (LAN) connection

Posted on March 27, 2015 by chanmingman

If you cannot access to LAN connection, there are few possibilities.   1. You IP is not in the same segment. 2. Your DNS server did not set correctly. 3. You Network Interface Card is spoiled. 4. Driver is not … Continue reading →

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Proxy Design Pattern C#

Posted on March 26, 2015 by chanmingman

This short article shows you how to build Proxy Design Pattern using C#. The design pattern define as an object representing another object by http://www.dofactory.com/net/proxy-design-pattern.   The logical model for Proxy Design Pattern as following. The key class in this … Continue reading →

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Read and write to properties file in Java

Posted on March 24, 2015 by chanmingman

This short article shows you how to read and write value to properties file in Java.   1. Import java.util.Properties   import java.util.Properties;   2. The code snippet to write to properties file as below. try (OutputStream out = new … Continue reading →

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Import Eclipse project into NetBeans

Posted on March 22, 2015 by chanmingman

This short article shows you how to import Eclipse project into NetBeans. 1. File -> Import Project -> Eclipse Project…   2. If you import a single project, choose Import project ignoring project dependencies.   I tested the project running … Continue reading →

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Could not open the editor: Resource is out of sync with the file system

Posted on March 22, 2015 by chanmingman

When you open a file in Eclipse you got the error “Could not open the editor: Resource is out of sync with the file system”. What you need to do is right click on the Project and choose Refresh.

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Strategy Design Pattern

Posted on March 20, 2015 by chanmingman

This short article shows you have to build Strategy design pattern in C#. The Strategy Design Pattern define as Encapsulates an algorithm inside a class by dofactory.com. This is the article I use to illustrate this Strategy Design Pattern. The … Continue reading →

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How to change Hyper-V VM time without changing the host

Posted on March 14, 2015 by chanmingman

This short article shows you how to change Hyper-V VM time without changing the host. 1. Click File -> Setting… in your Hyper-V machine pull down menu. 2. Click Integration Services. 3. Uncheck the Time Synchronization. Here you go.

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