Java: Programatic Way to Determine Current Windows User

Question

I see many similar questions, however I want to find the Username of the currently logged in user using Java.

Its probably something like:

System.getProperty(current.user);

But, I'm not quite sure.

Answer 1

You're actually really close. This is what you're looking for:

System.getProperty("user.name")

Answer 2

The commonly available system properties are documented in the System.getProperties() method.

As Chris said "user.name" is the property to get the user running your app.

Answer 3

As mentioned above (and linked for Java 6), to get the current user:

System.getProperty("user.name")

For Java 7: System.getProperties()

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For Java 9: System.getProperties()

For Java 10: System.getProperties()

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