topic Re: Reverse a String in Talend Studio

Reverse a String

Anonymous — Sat, 16 Nov 2024 12:45:25 GMT

Anyone know the best way in Talend to reverse order a string ?
i.e.
ABCD to DCBA
Thanks

Re: Reverse a String

janhess — Fri, 05 Aug 2011 09:11:54 GMT

I use this routine
/**
* reverseIt() Reverses a string.
*
* {talendTypes} String
*
* {Category} Ncl_routines
*
* {param} string ("fred") input: the string to be reversed
*
* {example} reverseIt("fred") # derf
*
*/
public static String reverseIt(String source) {
int i, len = source.length();
StringBuffer dest = new StringBuffer(len);
for (i = (len - 1); i >= 0; i--)
dest.append(source.charAt(i));
return dest.toString();
}

Re: Reverse a String

Anonymous — Fri, 05 Aug 2011 09:24:43 GMT

Thanks, I've got this routine but since I'm new to talend I just need a clue on how to apply it and encode it in a tmap function on an incoming string.

Re: Reverse a String

janhess — Fri, 05 Aug 2011 09:28:03 GMT

Under Code create new routine and add the code then use it as you would Talend routines.

Re: Reverse a String

Ayush3 — Mon, 16 Sep 2019 12:26:48 GMT

String reverse="";
for(int i=input_row.ReverseString.length()-1 ; i >= 0 ; i--)
{
reverse=reverse+input_row.ReverseString.charAt(i);
}
output_row.ReverseString=reverse;

write this code in tjavarow