Is there much of a difference in C# and JAVA?

Question

I completed C# and half way through JAVA, but they are pretty similar. Other than a few different expressions, I didn't find any major difference.

Answer 1

https://www.codeproject.com/Articles/22854/Main-Differences-between-C-and-Java
https://www.sololearn.com/Discuss/1103729/?ref=app
https://www.sololearn.com/Discuss/1000156/?ref=app

Answer 2

https://en.m.wikipedia.org/wiki/Comparison_of_C_Sharp_and_Java