StringReader.java

   1 package code.kalter.longflight;
   2
   3 import java.io.IOException;
   4 import java.io.InputStream;
   5
   6 /**
   7  * Для удобного чтения строк и других типов из файла. Является не более, чем
   8  * обёрткой для Inputstream
   9  *
  10  * @author KalterFive
  11  */
  12 public class StringReader {
  13
  14     private final InputStream inputStream;
  15
  16     public StringReader(InputStream inputStream) {
  17         this.inputStream = inputStream;
  18     }
  19
  20     public String nextString() throws IOException {
  21         StringBuffer stringBuffer = new StringBuffer();
  22         int c = inputStream.read();
  23         while (c != '\r' && c != -1) {
  24             stringBuffer.append((char) c);
  25             c = inputStream.read();
  26         }
  27         inputStream.read();
  28         return stringBuffer.toString();
  29     }
  30
  31     // читает true or false
  32     public boolean nextBool() throws IOException {
  33         String line = nextString();
  34         if (line.equals("true")) {
  35             return true;
  36         } else if (line.equals("false")) {
  37             return false;
  38         } else {
  39             throw new IllegalArgumentException(line);
  40         }
  41     }
  42
  43     public byte nextByte() throws IOException {
  44         return Byte.parseByte(nextString());
  45     }
  46
  47     public short nextShort() throws IOException {
  48         return Short.parseShort(nextString());
  49     }
  50
  51     public int nextInt() throws IOException {
  52         return Integer.parseInt(nextString());
  53     }
  54
  55     public long nextLong() throws IOException {
  56         return Long.parseLong(nextString());
  57     }
  58
  59     public float nextFloat() throws IOException {
  60         return Float.parseFloat(nextString());
  61     }
  62
  63     public double nextDouble() throws IOException {
  64         return Double.parseDouble(nextString());
  65     }
  66
  67     public void close() throws IOException {
  68         inputStream.close();
  69     }
  70 }