convert String Value to Hexa Value ?

[sachin kataria]

hi,
i want to convert String value to Hexa Value.
so, how i can do that ??
my String value len is 20.
i.e.
String str = "31080601090620003453";

so, how i convert this value to hexa value..

pls, help me....

[Ernest Friedman-Hill]

I can't tell precisely what you're after, but I suspect that the parseInt() and toHexString() methods in the java.lang.Integer class will do exactly what you need.

[Carl Trusiak]

20 places will exceed Long.MAX_VALUE of 9223372036854775807 19 places so, Use BigInteger

 String str = "31080601090620003453";
 BigInteger value = new BigInteger(str);
 System.out.println(value.toString());
 System.out.println(value.toString(16));

The second toString takes the radix of the number base. For hex it's 16.
[ August 31, 2006: Message edited by: Carl Trusiak ]