import java.io.*;public class PL0 {	    public static void main(String args[]) throws IOException {        BufferedReader in           = new BufferedReader(new InputStreamReader(System.in));        System.out.println("Please input the pl/0 file:");        String src = in.readLine();        System.out.println("Please input the result file name:");        String res = in.readLine();                try {            BufferedReader inp = new BufferedReader(new FileReader(src));            PrintWriter outp = new PrintWriter(new FileOutputStream(res), true);            Parse p = new Parse();            CodeSegment cs = p.doScan(inp, outp);                    if (cs != null) {                cs.interpret(outp);                System.out.println("Successfully finished this pl/0 program");            } else {                System.out.println("Errors in pl/0 program");                outp.println("Errors in pl/0 program");            }        } catch (Exception e) {            e.printStackTrace();        }           }}