Package cn.sliew.milky.common.primitives

Class Booleans

java.lang.Object

cn.sliew.milky.common.primitives.Booleans

public final class Booleans
extends Object

Static utility methods pertaining to boolean primitives.

Field Summary

Fields

Modifier and Type	Field	Description
static String	FALSE
static String	TRUE

Method Summary

Modifier and Type	Method	Description
static boolean	isBoolean(char[] text, int offset, int length)	returns true iff the sequence of chars is one of "true","false".
static boolean	isBoolean(String value)
static boolean	isFalse(String value)
static boolean	isTrue(String value)
static boolean	parseBoolean(char[] text, int offset, int length, boolean defaultValue)	Parses a char[] representation of a boolean value to boolean.
static boolean	parseBoolean(String value)	Parses a string representation of a boolean value to boolean.
static boolean	parseBoolean(String value, boolean defaultValue)
static Boolean	parseBoolean(String value, Boolean defaultValue)

Methods inherited from class java.lang.Object

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

Field Detail

TRUE

public static final String TRUE

See Also:

Constant Field Values

FALSE

public static final String FALSE

See Also:

Constant Field Values

Method Detail

isBoolean

public static boolean isBoolean(char[] text,
                                int offset,
                                int length)

returns true iff the sequence of chars is one of "true","false".

Parameters:

text - sequence to check

offset - offset to start

length - length to check

isBoolean

public static boolean isBoolean(String value)

isFalse

public static boolean isFalse(String value)

Returns:

true iff the value is "false", otherwise false.

isTrue

public static boolean isTrue(String value)

Returns:

true iff the value is "true", otherwise false.

parseBoolean

public static boolean parseBoolean(char[] text,
                                   int offset,
                                   int length,
                                   boolean defaultValue)

Parses a char[] representation of a boolean value to boolean.

Returns:

true iff the sequence of chars is "true", false iff the sequence of chars is "false" or the provided default value iff either text is null or length == 0.

Throws:

IllegalArgumentException - if the string cannot be parsed to boolean.

parseBoolean

public static boolean parseBoolean(String value)

Parses a string representation of a boolean value to boolean.

Returns:

true iff the provided value is "true". false iff the provided value is "false".

Throws:

IllegalArgumentException - if the string cannot be parsed to boolean.

parseBoolean

public static boolean parseBoolean(String value,
                                   boolean defaultValue)

Parameters:

value - text to parse.

defaultValue - The default value to return if the provided value is null.

Returns:

see parseBoolean(String)

parseBoolean

public static Boolean parseBoolean(String value,
                                   Boolean defaultValue)