- it
- 类型转换工具
类型转换工具
public class TypeCastHelper {
private static final String DEFAULT_STRING
= "";
private static final int DEFAULT_INT
= 0;
private static final long DEFAULT_LONG
= 0L
;
private static final double DEFAULT_DOUBLE
= 0.0D;
private static final float DEFAULT_FLOAT
= 0.0F;
private static final boolean DEFAULT_BOOLEAN
= Boolean
.FALSE
;
public static String
toString(Object obj
, String defaultValue
) {
return obj
!= null
? obj
.toString() : defaultValue
;
}
public static String
toString(Object obj
) {
return toString(obj
, DEFAULT_STRING
);
}
public static String
toString(Integer intValue
, String defaultValue
) {
return intValue
!= null
? String
.valueOf(intValue
) : defaultValue
;
}
public static String
toString(Integer intValue
) {
return toString(intValue
, DEFAULT_STRING
);
}
public static String
toString(Long longValue
, String defaultValue
) {
return longValue
!= null
? String
.valueOf(longValue
) : defaultValue
;
}
public static String
toString(Long longValue
) {
return toString(longValue
, DEFAULT_STRING
);
}
public static String
toString(Boolean booleanValue
, String defaultValue
) {
return booleanValue
!= null
? String
.valueOf(booleanValue
) : defaultValue
;
}
public static String
toString(Boolean booleanValue
) {
return toString(booleanValue
, DEFAULT_STRING
);
}
public static String
toString(Double doubleValue
, String defaultValue
) {
return null
!= doubleValue
? String
.valueOf(doubleValue
) : defaultValue
;
}
public static String
toString(Double doubleValue
) {
return toString(doubleValue
, DEFAULT_STRING
);
}
public static String
toString(Float floatValue
, String defaultValue
) {
return null
!= floatValue
? String
.valueOf(floatValue
) : defaultValue
;
}
public static String
toString(Float floatValue
) {
return toString(floatValue
, DEFAULT_STRING
);
}
public static int toInt(Object objectValue
, int defaultValue
) {
int intValue
= defaultValue
;
if (null
!= objectValue
) {
try {
intValue
= Integer
.parseInt(toString(objectValue
, toString(defaultValue
)));
} catch (NumberFormatException numberFormatException
) {
System
.err
.println(numberFormatException
.getMessage());
}
}
return intValue
;
}
public static int toInt(Object objectValue
) {
return toInt(objectValue
, DEFAULT_INT
);
}
public static int toInt(String stringValue
, int defaultValue
) {
int intValue
= defaultValue
;
if (null
!= stringValue
&& stringValue
.length() > 0) {
try {
intValue
= Integer
.parseInt(stringValue
);
} catch (NumberFormatException numberFormatException
) {
System
.err
.println(numberFormatException
.getMessage());
}
}
return intValue
;
}
public static int toInt(Long longValue
, int defaultValue
) {
int intValue
= defaultValue
;
if (null
!= longValue
) {
intValue
= longValue
.intValue();
}
return intValue
;
}
public static int toInt(Long longValue
) {
return toInt(longValue
, DEFAULT_INT
);
}
public static int toInt(Boolean booleanValue
, int defaultValue
) {
int intValue
= defaultValue
;
if (null
!= booleanValue
) {
intValue
= booleanValue
? 1 : 0;
}
return intValue
;
}
public static int toInt(Boolean booleanValue
) {
return toInt(booleanValue
, DEFAULT_INT
);
}
public static int toInt(Double doubleValue
, int defaultValue
) {
int intValue
= defaultValue
;
if (null
!= doubleValue
) {
intValue
= doubleValue
.intValue();
}
return intValue
;
}
public static int toInt(Double doubleValue
) {
return toInt(doubleValue
, DEFAULT_INT
);
}
public static int toInt(Float floatValue
, int defaultValue
) {
int intValue
= defaultValue
;
if (null
!= floatValue
) {
intValue
= floatValue
.intValue();
}
return intValue
;
}
public static int toInt(Float floatValue
) {
return toInt(floatValue
, DEFAULT_INT
);
}
public static long toLong(Object objectValue
, long defaultValue
) {
long longValue
= defaultValue
;
if (null
!= objectValue
) {
try {
longValue
= Long
.parseLong(toString(objectValue
, toString(defaultValue
)));
} catch (NumberFormatException numberFormatException
) {
System
.err
.println(numberFormatException
.getMessage());
}
}
return longValue
;
}
public static long toLong(Object objectValue
) {
return toLong(objectValue
, DEFAULT_LONG
);
}
public static long toLong(String stringValue
, long defaultValue
) {
long longValue
= defaultValue
;
if (null
!= stringValue
&& stringValue
.length() > 0) {
longValue
= Long
.parseLong(stringValue
);
}
return longValue
;
}
public static long toLong(String stringValue
) {
return toLong(stringValue
, DEFAULT_LONG
);
}
public static long toLong(Integer intValue
, long defaultValue
) {
long longValue
= defaultValue
;
if (null
!= intValue
) {
longValue
= intValue
.longValue();
}
return longValue
;
}
public static long toLong(Integer intValue
) {
return toLong(intValue
, DEFAULT_LONG
);
}
public static long toLong(Boolean booleanValue
, long defaultValue
) {
long longValue
= defaultValue
;
if (null
!= booleanValue
) {
longValue
= booleanValue
? 1L
: 0L
;
}
return longValue
;
}
public static long toLong(Boolean booleanValue
) {
return toLong(booleanValue
, DEFAULT_LONG
);
}
public static long toLong(Double doubleValue
, long defaultValue
) {
long longValue
= defaultValue
;
if (null
!= doubleValue
) {
longValue
= doubleValue
.longValue();
}
return longValue
;
}
public static long toLong(Double doubleValue
) {
return toLong(doubleValue
, DEFAULT_LONG
);
}
public static long toLong(Float floatValue
, long defaultValue
) {
long longValue
= defaultValue
;
if (null
!= floatValue
) {
longValue
= floatValue
.longValue();
}
return longValue
;
}
public static long toLong(Float floatValue
) {
return toLong(floatValue
, DEFAULT_LONG
);
}
public static boolean toBoolean(Object objectValue
, boolean defaultValue
) {
boolean booleanValue
= defaultValue
;
if (null
!= objectValue
) {
booleanValue
= Boolean
.valueOf(toString(objectValue
, toString(defaultValue
)));
}
return booleanValue
;
}
public static boolean toBoolean(Object objectValue
) {
return toBoolean(objectValue
, DEFAULT_BOOLEAN
);
}
public static boolean toBoolean(String stringValue
, boolean defaultValue
) {
boolean booleanValue
= defaultValue
;
if (null
!= stringValue
&& stringValue
.length() > 0) {
booleanValue
= Boolean
.valueOf(stringValue
);
}
return booleanValue
;
}
public static boolean toBoolean(String stringValue
) {
return toBoolean(stringValue
, DEFAULT_BOOLEAN
);
}
public static boolean toBoolean(Integer intValue
, boolean defaultValue
) {
boolean booleanValue
= defaultValue
;
if (null
!= intValue
) {
booleanValue
= intValue
== 1;
}
return booleanValue
;
}
public static boolean toBoolean(Integer intValue
) {
return toBoolean(intValue
, DEFAULT_BOOLEAN
);
}
public static boolean toBoolean(Long longValue
, boolean defaultValue
) {
boolean booleanValue
= defaultValue
;
if (null
!= longValue
) {
booleanValue
= longValue
.longValue() == 1L
;
}
return booleanValue
;
}
public static boolean toBoolean(Long longValue
) {
return toBoolean(longValue
, DEFAULT_BOOLEAN
);
}
public static float toFloat(Object objectValue
, float defaultValue
) {
float floatValue
= defaultValue
;
if (null
!= objectValue
) {
try {
floatValue
= Float
.valueOf(toString(objectValue
, toString(defaultValue
)));
} catch (NumberFormatException numberFormatException
) {
System
.err
.println(numberFormatException
);
}
}
return floatValue
;
}
public static float toFloat(Object objectValue
) {
return toFloat(objectValue
, DEFAULT_FLOAT
);
}
public static float toFloat(String stringValue
, float defaultValue
) {
float floatValue
= defaultValue
;
if (null
!= stringValue
&& stringValue
.length() > 0) {
try {
floatValue
= Float
.valueOf(stringValue
);
} catch (NumberFormatException numberFormatException
) {
System
.err
.println(numberFormatException
.getMessage());
}
}
return floatValue
;
}
public static float toFloat(String stringValue
) {
return toFloat(stringValue
, DEFAULT_FLOAT
);
}
public static float toFloat(Integer intValue
, float defaultValue
) {
float floatValue
= defaultValue
;
if (null
!= intValue
) {
floatValue
= intValue
.floatValue();
}
return floatValue
;
}
public static float toFloat(Integer intValue
) {
return toFloat(intValue
, DEFAULT_FLOAT
);
}
public static float toFloat(Long longValue
, float defaultValue
) {
float floatValue
= defaultValue
;
if (null
!= longValue
) {
floatValue
= longValue
.floatValue();
}
return floatValue
;
}
public static float toFloat(Long longValue
) {
return toFloat(longValue
, DEFAULT_FLOAT
);
}
public static float toFloat(Double doubleValue
, float defaultValue
) {
float floatValue
= defaultValue
;
if (null
!= doubleValue
) {
floatValue
= doubleValue
.floatValue();
}
return floatValue
;
}
public static float toFloat(Double doubleValue
) {
return toFloat(doubleValue
, DEFAULT_FLOAT
);
}
public static double toDouble(Object objectValue
, double defaultValue
) {
double doubleValue
= defaultValue
;
if (null
!= objectValue
) {
doubleValue
= Double
.parseDouble(toString(objectValue
, toString(defaultValue
)));
}
return doubleValue
;
}
public static double toDouble(Object objectValue
) {
return toDouble(objectValue
, DEFAULT_DOUBLE
);
}
public static double toDouble(String stringValue
, double defaultValue
) {
double doubleValue
= defaultValue
;
if (null
!= stringValue
&& stringValue
.length() > 0) {
doubleValue
= Double
.parseDouble(stringValue
);
}
return doubleValue
;
}
public static double toDouble(String stringValue
) {
return toDouble(stringValue
, DEFAULT_DOUBLE
);
}
public static double toDouble(Integer intValue
, double defaultValue
) {
double doubleValue
= defaultValue
;
if (null
!= intValue
) {
doubleValue
= intValue
.doubleValue();
}
return doubleValue
;
}
public static double toDouble(Integer intValue
) {
return toDouble(intValue
, DEFAULT_DOUBLE
);
}
public static double toDouble(Long longValue
, double defaultValue
) {
double doubleValue
= defaultValue
;
if (null
!= longValue
) {
doubleValue
= longValue
.doubleValue();
}
return doubleValue
;
}
public static double toDouble(Long longValue
) {
return toDouble(longValue
, DEFAULT_DOUBLE
);
}
public static double toDouble(Float floatValue
, double defaultValue
) {
double doubleValue
= defaultValue
;
if (null
!= floatValue
) {
doubleValue
= floatValue
.doubleValue();
}
return doubleValue
;
}
public static double toDouble(Float floatValue
) {
return toDouble(floatValue
, DEFAULT_DOUBLE
);
}
}
