Examples of java.text.ParsePosition

java.text.ParsePosition
ParsePosition is a simple class used by Format and its subclasses to keep track of the current position during parsing. The parseObject method in the various Format classes requires a ParsePosition object as an argument.
By design, as you parse through a string with different formats, you can use the same ParsePosition, since the index parameter records the current position. @version 1.20 11/17/05 @author Mark Davis @see java.text.Format

      Calendar cal = (Calendar) it.next();
      Date date = cal.getTime();


      String serial = formatter.format(date);


      ParsePosition pos = new ParsePosition(0);
      Date parsedDate = formatter.parse(serial, pos);
      assertNotNull(
        "Parsing of " + serial + " failed at position " + pos.getIndex(),
        parsedDate);
      assertEquals(
        "ISO 8601 date parser produces wrong result",
        date,
        parsedDate);

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   */
  public void testParseException() {
    String wrong = "1999-mar-01";
    ISO8601DateFormat formatter = new ISO8601DateFormat();


    ParsePosition pos = new ParsePosition(0);
    Date res = formatter.parse(wrong, pos);


    assertNull("A null value should have been returned.", res);


    assertEquals(
      "The wrong parse position is reported in case of error.",
      5,
      pos.getErrorIndex());
  }

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                formatter = NumberFormat.getNumberInstance(locale);
            } else {
                formatter = NumberFormat.getNumberInstance(Locale.getDefault());
            }
            formatter.setParseIntegerOnly(true);
            ParsePosition pos = new ParsePosition(0);
            Number num = formatter.parse(value, pos);


            // If there was no error      and we used the whole string
            if (pos.getErrorIndex() == -1 && pos.getIndex() == value.length()) {
                if (num.doubleValue() >= Byte.MIN_VALUE &&
                    num.doubleValue() <= Byte.MAX_VALUE) {
                    result = new Byte(num.byteValue());
                }
            }

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                formatter = NumberFormat.getNumberInstance(locale);
            } else {
                formatter = NumberFormat.getNumberInstance(Locale.getDefault());
            }
            formatter.setParseIntegerOnly(true);
            ParsePosition pos = new ParsePosition(0);
            Number num = formatter.parse(value, pos);


            // If there was no error      and we used the whole string
            if (pos.getErrorIndex() == -1 && pos.getIndex() == value.length()) {
                if (num.doubleValue() >= Short.MIN_VALUE &&
                    num.doubleValue() <= Short.MAX_VALUE) {
                    result = new Short(num.shortValue());
                }
            }

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                formatter = NumberFormat.getNumberInstance(locale);
            } else {
                formatter = NumberFormat.getNumberInstance(Locale.getDefault());
            }
            formatter.setParseIntegerOnly(true);
            ParsePosition pos = new ParsePosition(0);
            Number num = formatter.parse(value, pos);


            // If there was no error      and we used the whole string
            if (pos.getErrorIndex() == -1 && pos.getIndex() == value.length()) {
                if (num.doubleValue() >= Integer.MIN_VALUE &&
                    num.doubleValue() <= Integer.MAX_VALUE) {
                    result = new Integer(num.intValue());
                }
            }

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                formatter = NumberFormat.getNumberInstance(locale);
            } else {
                formatter = NumberFormat.getNumberInstance(Locale.getDefault());
            }
            formatter.setParseIntegerOnly(true);
            ParsePosition pos = new ParsePosition(0);
            Number num = formatter.parse(value, pos);


            // If there was no error      and we used the whole string
            if (pos.getErrorIndex() == -1 && pos.getIndex() == value.length()) {
                if (num.doubleValue() >= Long.MIN_VALUE &&
                    num.doubleValue() <= Long.MAX_VALUE) {
                    result = new Long(num.longValue());
                }
            }

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            if (locale != null) {
                formatter = NumberFormat.getInstance(locale);
            } else {
                formatter = NumberFormat.getInstance(Locale.getDefault());
            }
            ParsePosition pos = new ParsePosition(0);
            Number num = formatter.parse(value, pos);


            // If there was no error      and we used the whole string
            if (pos.getErrorIndex() == -1 && pos.getIndex() == value.length()) {
                if (num.doubleValue() >= (Float.MAX_VALUE * -1) &&
                    num.doubleValue() <= Float.MAX_VALUE) {
                    result = new Float(num.floatValue());
                }
            }

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            if (locale != null) {
                formatter = NumberFormat.getInstance(locale);
            } else {
                formatter = NumberFormat.getInstance(Locale.getDefault());
            }
            ParsePosition pos = new ParsePosition(0);
            Number num = formatter.parse(value, pos);


            // If there was no error      and we used the whole string
            if (pos.getErrorIndex() == -1 && pos.getIndex() == value.length()) {
                if (num.doubleValue() >= (Double.MAX_VALUE * -1) &&
                    num.doubleValue() <= Double.MAX_VALUE) {
                    result = new Double(num.doubleValue());
                }
            }

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      dfi.dfs = new SimpleDateFormat[DATE_FORMATS.length];
      for (int i = 0; i < dfi.dfs.length; i++) {
        dfi.dfs[i] = new SimpleDateFormat(DATE_FORMATS[i], Locale.US);
        dfi.dfs[i].setLenient(true);
      }
      dfi.pos = new ParsePosition(0);
      dateFormats.set(dfi);
    }
    return dfi;
  }

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  // because SimpleDateFormat is not thread-safe).
  private DateFormatInfo getDateFormatInfo() {
    DateFormatInfo dfi = dateFormat.get();
    if (dfi == null) {
      dfi = new DateFormatInfo();
      dfi.pos = new ParsePosition(0);
      // date format: 30-MAR-1987 14:22:36.87
      dfi.df = new SimpleDateFormat("dd-MMM-yyyy kk:mm:ss.SSS", Locale.US);
      dfi.df.setLenient(true);
      dateFormat.set(dfi);
    }

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