Examples of java.text.DecimalFormat.applyPattern()

java.text.DecimalFormat.applyPattern()
Apply the given pattern to this Format object. A pattern is a short-hand specification for the various formatting properties. These properties can also be changed individually through the various setter methods.
There is no limit to integer digits set by this routine, since that is the typical end-user desire; use setMaximumInteger if you want to set a real value. For negative numbers, use a second pattern, separated by a semicolon
Example "#,#00.0#" -> 1,234.56
This means a minimum of 2 integer digits, 1 fraction digit, and a maximum of 2 fraction digits.
Example: "#,#00.0#;(#,#00.0#)" for negatives in parentheses.
In negative patterns, the minimum and maximum counts are ignored; these are presumed to be set in the positive pattern. @exception NullPointerException if pattern is null @exception IllegalArgumentException if the given pattern is invalid.

      ".46", result);


    // set RoundingMode.HALF_EVEN of this DecimalFormat and test its
    // behavior
    decimalFormat.setRoundingMode(RoundingMode.HALF_EVEN);
    decimalFormat.applyPattern(".##");
    result = decimalFormat.format(0.125);
    assertEquals(
      "Incorrect RoundingMode behavior after applyPattern",
      ".12", result);
    result = decimalFormat.format(0.255);

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    // Test with applyPattern call after setRoundingMode


    // set RoundingMode.HALF_UP of this DecimalFormat and test its
    // behavior
    decimalFormat.setRoundingMode(RoundingMode.HALF_UP);
    decimalFormat.applyPattern(".##");
    result = decimalFormat.format(0.125);
    assertEquals(
      "Incorrect RoundingMode behavior after applyPattern",
      ".13", result);
    result = decimalFormat.format(0.255);

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      ".47", result);


    // set RoundingMode.HALF_DOWN of this DecimalFormat and test its
    // behavior
    decimalFormat.setRoundingMode(RoundingMode.HALF_DOWN);
    decimalFormat.applyPattern(".##");
    result = decimalFormat.format(0.125);
    assertEquals(
      "Incorrect RoundingMode behavior after applyPattern",
      ".12", result);
    result = decimalFormat.format(0.255);

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      ".47", result);


    // set RoundingMode.UP of this DecimalFormat and test its
    // behavior
    decimalFormat.setRoundingMode(RoundingMode.UP);
    decimalFormat.applyPattern(".##");
    result = decimalFormat.format(0.125);
    assertEquals(
      "Incorrect RoundingMode behavior after applyPattern",
      ".13", result);
    result = decimalFormat.format(0.255);

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      ".47", result);


    // set RoundingMode.DOWN of this DecimalFormat and test its
    // behavior
    decimalFormat.setRoundingMode(RoundingMode.DOWN);
    decimalFormat.applyPattern(".##");
    result = decimalFormat.format(0.125);
    assertEquals(
      "Incorrect RoundingMode behavior after applyPattern",
      ".12", result);
    result = decimalFormat.format(0.255);

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    if (_rounding != BigDecimal.ROUND_HALF_EVEN)
      df.setRoundingMode(RoundingMode.valueOf(_rounding));


    String fmt = getFormat();
    if (fmt == null) fmt = defaultFormat;
    if (fmt != null) df.applyPattern(fmt);
    return df.format(value);
  }
  /** Filters out non digit characters, such comma and whitespace,
   * from the specified value.
   * It is designed to let user enter data in more free style.

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      return format;
    }
    DecimalFormat decimalFormat = (DecimalFormat) format;
    decimalFormat.setParseBigDecimal(true);
    if (this.pattern != null) {
      decimalFormat.applyPattern(this.pattern);
    }
    return decimalFormat;
  }


}

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      // we never reach double digit grouping so return
      if(n < 100000) return removeTrailingZero(formatter.format(n));


      // switch to double digit grouping
      formatter.applyPattern("#,##");


      //divide by 1000, so that we get everything before the 3-group
      returnValue = formatter.format((int)(n / 1000)) + ",";


      // switch back to triple grouping + decimal

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      //divide by 1000, so that we get everything before the 3-group
      returnValue = formatter.format((int)(n / 1000)) + ",";


      // switch back to triple grouping + decimal
      formatter.applyPattern("000.00");


      // remove value of number over 999 (so we just get the last
      // 5 digits)
      returnValue += formatter.format(n - (long)(n / 1000) * (long)1000);

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      // we never reach double digit grouping so return
      if(n < 100000) return formatter.format(n);


      // switch to double digit grouping
      formatter.applyPattern("#,##");


      //divide by 1000, so that we get everything before the 3-group
      returnValue = formatter.format((int)(n / 1000)) + ",";


      // switch back to triple grouping + decimal

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