global

Class ConversionOps

java.lang.Object

global.ConversionOps

public class ConversionOps
extends java.lang.Object

Contains static methods to convert some types into each other.

Author:

Andreas Fender

Constructor Summary

Constructors

Constructor and Description
ConversionOps()

Method Summary

Methods

Modifier and Type	Method and Description
static int	boolToInt(boolean value) Converts the given boolean value into a binary integer.
static java.lang.String	boolToString(boolean bool) Returns a string representation of the given primitive boolean.
static boolean	charInString(char c, java.lang.String string) Checks whether or not the given character is contained in the given string.
static java.lang.String	colorToString(java.awt.Color color) Returns a string representation of the given color.
static boolean	extendsClass(java.lang.Class<?> extendingClass, java.lang.Class<?> superClass) Checks whether or not a class extends another class.
static java.lang.String	extractNumber(java.lang.String string) Extracts the first appearance of a number in the given string.
static boolean	intToBool(int value) Converts the given integer value into a boolean value.
static java.lang.Double	toDouble(java.lang.Object value) Calls toDouble(value,null)
static java.lang.Double	toDouble(java.lang.Object value, java.lang.Double defaultValue) Tries to convert the given object into a double value.
static java.lang.Float	toFloat(java.lang.Object value) Calls toFloat(value,null)
static java.lang.Float	toFloat(java.lang.Object value, java.lang.Float defaultValue) Tries to convert the given object value into a double value.
static java.lang.Integer	toInteger(java.lang.Object value) Calls toInteger(value,null)
static java.lang.Integer	toInteger(java.lang.Object value, java.lang.Integer defaultValue) Tries to convert the given object value into an integer value.

Methods inherited from class java.lang.Object

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

Constructor Detail

ConversionOps

public ConversionOps()

Method Detail

toDouble

public static java.lang.Double toDouble(java.lang.Object value,
                        java.lang.Double defaultValue)

Tries to convert the given object into a double value.

Parameters:

value - the value to convert. Can be a Double, another Number, a String or a Boolean.

defaultValue - the value to return, if the given value could not be converted.

Returns:

the value as a Double or the default value, if it could not be converted.

toDouble

public static java.lang.Double toDouble(java.lang.Object value)

Calls toDouble(value,null)

toFloat

public static java.lang.Float toFloat(java.lang.Object value,
                      java.lang.Float defaultValue)

Tries to convert the given object value into a double value.

Parameters:

value - the value to convert. Can be a Float, another Number, a String or a Boolean.

defaultValue - the value to return, if the given value could not be converted.

Returns:

the value as a Float or the default value, if it could not be converted.

toFloat

public static java.lang.Float toFloat(java.lang.Object value)

Calls toFloat(value,null)

toInteger

public static java.lang.Integer toInteger(java.lang.Object value,
                          java.lang.Integer defaultValue)

Tries to convert the given object value into an integer value.

Parameters:

value - the value to convert. Can be a Integer, another Number, a String or a Boolean.

defaultValue - the value to return, if the given value could not be converted.

Returns:

the value as a Integer or the default value, if it could not be converted.

toInteger

public static java.lang.Integer toInteger(java.lang.Object value)

Calls toInteger(value,null)

boolToInt

public static int boolToInt(boolean value)

Converts the given boolean value into a binary integer.

Parameters:

value - the value to convert.

Returns:

1, if value is true, 0 otherwise.

intToBool

public static boolean intToBool(int value)

Converts the given integer value into a boolean value.

Parameters:

value - the value to convert.

Returns:

true, if and only if, value is not zero.

extendsClass

public static boolean extendsClass(java.lang.Class<?> extendingClass,
                   java.lang.Class<?> superClass)

Checks whether or not a class extends another class.

Parameters:

extendingClass - the extending class to check.

superClass - the super class to check.

Returns:

true, if and only if, extending class is a subclass of superClass.

colorToString

public static java.lang.String colorToString(java.awt.Color color)

Returns a string representation of the given color.

Parameters:

color - the color to convert into a string.

Returns:

the red, green, blue and, if existing, alpha value as a readable string.

charInString

public static boolean charInString(char c,
                   java.lang.String string)

Checks whether or not the given character is contained in the given string.

Parameters:

c - the character to check.

string - the string which may contain the character.

Returns:

true, if and only if, string contains c.

extractNumber

public static java.lang.String extractNumber(java.lang.String string)

Extracts the first appearance of a number in the given string.

Parameters:

string - the string containing a number.

Returns:

a string, only containing the extracted number or null, if there was no number in the given string.

boolToString

public static final java.lang.String boolToString(boolean bool)

Returns a string representation of the given primitive boolean.

Parameters:

bool - the boolean to convert into a string.

Returns:

"TRUE" if bool is true, "FALSE" otherwise.