package com.company;

import java.io.*;

public class modScanner {
    private Reader reader;
    private char lastChar;
    private StringBuilder string = new StringBuilder("");
    private StringBuilder integer = new StringBuilder("");
    private boolean used = false;

    public modScanner(Reader r) {
        reader = r;
    }

//    public modScanner(InputStream in) {
//        this(new BufferedReader(new InputStreamReader(in)));
//    }

    public modScanner(File file) throws IOException {
        this(new BufferedReader(new FileReader(file)));
    }

    public void close() throws IOException {
        reader.close();
    }

    private boolean nextSymbolReader() throws IOException {
        int ch = reader.read();
        if (ch >= 0) {
            lastChar = (char) ch;
            return true;
        }
        return false;
    }

    private boolean createString() throws IOException {
        if (!used) {
            string.delete(0, string.length());
            while (nextSymbolReader() && !Character.isWhitespace(lastChar)) {
                string.append(lastChar);
            }
            return string.length() > 0;
        }
        return string.length() > 0;
    }

    private boolean createStringInt() throws IOException {
        if (!used) {
            integer.delete(0, integer.length());
            while (nextSymbolReader() && !Character.isWhitespace(lastChar) && (Character.isDigit(lastChar) || lastChar == '.')) {
                integer.append(lastChar);
            }
            if (integer.length() > 0 && integer.charAt(integer.length() - 1) == '.'){
                createStringInt();
            }
            return integer.length() > 0;
        }
        return integer.length() > 0;
    }

    public boolean hasNext() throws IOException {
        if (used) {
            used = false;
            return createString();
        }
        return createString();
    }

    public boolean hasNextInt() throws IOException {
        if (used) {
            used = false;
            return createStringInt();
        }
        return createStringInt();
    }


    public String next() throws IOException {
        used = true;
        return string.toString();
    }

    public int nextInt() throws IOException {
        return 0;
    }

}