What does the D in
-Dproperty=value
Set a system property value.
Of the Java application launcher stand for? For some reason it’s been bothering me, why D?
Advertisement
Answer
I’ve always assumed it was to define the value of a property… possibly a legacy from C compilers, which often use -D
as similar to #define
in code.
EDIT: The closest I have to a source for this at the moment is some JDK 1.1 documentation which specifies the flag as:
Redefines a property value. propertyName is the name of the property whose value you want to change and newValue is the value to change it to. […]
That at least contains the word “redefine” which is close to “define” 🙂