Which statement copies the contents of sw to userInput?

StringWriter sw $=$ new StringWriter$()$;

PrintWriter pw $=$ new PrintWriter$($sw$)$;

pw$.$println$("$Java is awesome!"$)$;

String userInput;

Question $3$ options:

userInput $=$ pw

userInput $=$ sw$.$toString$()$;

userInput $=$ sw;

userInput $=$ pw$.$print$()$;