/in/Main.java:1: error: class, interface, or enum expected
begin
^
/in/Main.java:2: error: unclosed character literal
    writeln('hello, world');
            ^
/in/Main.java:2: error: unclosed character literal
    writeln('hello, world');
                         ^
/in/Main.java:3: error: class, interface, or enum expected
end.
^
4 errors