After you've typed the meaningful part of a declaration or a statement, you can press &shortcut:EditorCompleteStatement; to automatically insert necessary syntax elements (closing parentheses, braces, semicolons etc.) and get in the position where you can go on typing.

For example, if you've typed

public void Foo(string input/*caret*/

you can press &shortcut:EditorCompleteStatement; to get

public void Foo(string input) { /*caret*/ }