org.djunits.value.formatter

Class EngineeringFormatter

java.lang.Object

org.djunits.value.formatter.EngineeringFormatter

public final class EngineeringFormatter
extends Object

Format a value in Engineering notation, or normal floating point notation if that can represent the value more accurately.

Copyright (c) 2015-2018 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
BSD-style license. See DJUNITS License.

Version:

$Revision: 256 $, $LastChangedDate: 2018-01-28 03:17:44 +0100 (Sun, 28 Jan 2018) $, by $Author: averbraeck $, initial version 11 sep. 2015

Author:

Peter Knoppers

Method Summary

Modifier and Type	Method and Description
static String	convertToEngineering(String in) Make the exponent of a floating point value a multiple of 3.
static String	format(double val) Format a double in Engineering format using DEFAULTSIZE room.
static String	format(double val, int room) Format a double in Engineering format.
static String	padd(String in, int width) Extend a String with spaces, or trim it to reach a specified length.
static void	setUpperCaseFormat(boolean upper) Switch to/from upper case E for exponent indicator.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

setUpperCaseFormat

public static void setUpperCaseFormat(boolean upper)

Switch to/from upper case E for exponent indicator. The default is to use upper case.

Parameters:

upper - boolean; if true; an upper case E will be used; if false; a lower case e will be used

format

public static String format(double val)

Format a double in Engineering format using DEFAULTSIZE room.

Parameters:

val - double; the value to format

Returns:

String; the formatted value

format

public static String format(double val,
                            int room)

Format a double in Engineering format.

Parameters:

val - double; the value to format

room - int; the width in characters of the result (minimum value is 10; values below this limit will be treated as 10)

Returns:

String; the formatted value

convertToEngineering

public static String convertToEngineering(String in)

Make the exponent of a floating point value a multiple of 3. Assumes that the first dot or comma is the radix symbol.

Parameters:

in - String; String representation of a floating point value

Returns:

String; The engineering formatted value

padd

public static String padd(String in,
                          int width)

Extend a String with spaces, or trim it to reach a specified length.

Parameters:

in - String; input string

width - int; length of the result

Returns:

String; the extended or trimmed input string