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Message:

Converting a text string to hex numvers

Posted by Kishori Sharan on January 08, 2001 at 9:40 AM

We always have an array of numbers like int. You cannot declare that it is an array of hex no. Whenevr, you need that no to be represendted in hex as a string you can use
String temp = Interger.toHexString ( your_no ) ;
So you can convert the string which holds many numbers in hex format to an array of int as follows.
String hex_string ;

// Since you know the no. of chars in string is always even then
int len = hex_string.length / 2 ;
int[] all_no = new int[len] ;

// Start a loop which reads two chars at a time in a string
for ( int i = 0 ; i < len ; i++ ) {
try {
// read two chars a time in two_chars string variable
all_no[i] = Integer.parseInt ( two_chars, 16 ) ;
}
catch ( NumberFormatException e ) {

}
}