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http://www.open-open.com/bbs/view/1320934157953/
java:
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)