1st error - semicolon after your IOException in you main method declaration
2nd error - i think it's in here
public static input in = new input()
maybe you need to import the class where input type is located. by the way what are you trying to do? get input from the user? may you should use java.util.Scanner
Example:
Scanner in = new Scanner(System.in);
System.out.println("Enter username:");
String username = in.nextLine();
System.out.println(username);