Kevin.Gao.Blog

• Use “base” instead of “super”.
• Use “namespace” instead of “package”.
• Use “using” instead of “import”. You can comment the import section and use the Resolve function of Visual Studio 2008 to add “using” automatically.
• Omit “throw Exception” in the end of the functions.
• Using “delegate callback” when accessing UI resources through workers threads.Below is the example of closing dialog boxes in workers thread:
  • Java
    public void closeDialog()
{
m_isCanceled = false;
Display.getDefault().syncExec(new Runnable()
{
public void run()
{
Shell shell = getShell();
if (shell != null)
{
if (!shell.isDisposed())
{
shell.dispose();
}
}
}
});
}

  • C#
    delegate void GUICallback(string pos);
//Function declaration.
//Please note the prototype of the function is certain:
//the return value is void and the input parameter is string.
private void closeDialogInner(string strMessage)
{
if (this.InvokeRequired)
//This is a system function.
//If this function needs to access some control resources,
//please change "this" to the name of the control,
//for example: this.m_btnOK.InvokeRequired.
{
GUICallback callback = new GUICallback(closeDialogInner);
this.Invoke(callback, new object[] { strMessage });
}
else
{
this.Close();
}
}

• Replace Display.getDefault().getActiveShell() with Form.ActiveForm(). This function may be not used much.
• Use “is” instead of “instanceof”.
• Replace Integer.MAX_VALUE with int.MaxValue and replace Long.MAX_VALUE with long.MaxValue.
• An important thing: please keep the variables of interfaces’ controls consistent.Don’t change logic. Don’t comment codes if you don’t need to. Please try to convert a function at a dash.
  These are the recommended steps:
  • Transfer util class.
  • Transfer IView class.
  • Draw dialog boxes. Please make sure the variables of the control names in C# and Java are the same.
  • Implement the functions in IView.
  • Convert the controller classes.
    • Convert thread classes
    • Convert the Dialog control classes
  • Add events for controls
  • Copy the implementing code of Copy event.
    One thing to notice: The constructor of Form calls InitializeComponent() directly, but in Java, createContents is called only when openDialob, so the time to create controls are different in C# and Java. The time to call FormLoad(…) method in C# is similar to that of createContents in Java.
• Replace “final” in local constant with “const”.
• Omit “final” in parameters.
• Use “public const” instead of “public final static”.
• Replace “length” with “Length” in the member of array’s length.
• Using Long:
  • Using Long= System.Int64;
  • Integer.MaxValue->Integer.MAX_VALUE
• Using Integer:
  • Using Integer = System.Int32
  • Long.MaxValue->Long.MAX_VALUE

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