Java常用数据类型转换函数

string->byte Byte static byte parseByte(String s)

byte->string Byte static String toString(byte b)

char->string Character static String to String (char c)

string->Short Short static Short parseShort(String s)

Short->String Short static String toString(Short s)

String->Integer Integer static int parseInt(String s)

Integer->String Integer static String tostring(int i)

String->Long Long static long parseLong(String s)

Long->String Long static String toString(Long i)

String->Float Float static float parseFloat(String s)

Float->String Float static String toString(float f)

String->Double Double static double parseDouble(String s)

Double->String Double static String toString(Double d)

//转换string为int

public static int stringToInt(String intstr)

{

Integer integer;

integer = Integer.valueOf(intstr);

return integer.intValue();

}

//转换int为string

public static String intToString(int value)

{

Integer integer = new Integer(value);

return integer.toString();

}

//转换string为float

public static float stringToFloat(String floatstr)

{

Float floatee;

floatee = Float.valueOf(floatstr);

return floatee.floatValue();

}

//转换float为string

public static String floatToString(float value)

{

Float floatee = new Float(value);

return floatee.toString();

}

//change the string type to the sqlDate type

public static java.sql.Date stringToDate(String dateStr)

{

return java.sql.Date.valueOf(dateStr);

}

//change the sqlDate type to the string type

public static String dateToString(java.sql.Date datee)

{

return datee.toString();

}