Difference between c# and java? which is fast?

Question

What is the difference between c# and java? and which language is fast.

Answer 1

C# runs on Windows only
Java is platform independent

I heard C# is faster in some cases. Not quite sure which is faster, but I think C#.

The syntax is almost the same. GUIs in Java are written in FXML and in C# in XAML. Both are based on XML.

If you want to read more about this topic go over there:
https://msdn.microsoft.com/en-us/library/ms836794.aspx

Answer 2

Faster: C#.
Portability: Java
Community Support: Java
Similarity between Syntax: Strong
GUI Easy achieve: C#
Learn Curve: Java > C#