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  • Yogesh Singh 32
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2 replies

Increment digit value in String

I want to replace integers in "XYZ__3 AND XYZ__4" after size = 3 and expecting result "XYZ__4 AND XYZ__5"
  
String expression = 'XYZ__3 AND XYZ__4';
Integer size = 3;
Pattern p = Pattern.compile('(\\d{1,2})');
Matcher m = p.matcher(expression);

String next = '';
while (m.find()) {
   next = String.valueOf(size + 1);
   expression = expression.replaceAll(m.group(1), next);
   size++;
}

system.debug(expression);
But, I am getting "XYZ__5 AND XYZ__5". How can I achieve this using pattern and Matcher
 
2 replies

Increment digit value in String

I want to replace integers in "XYZ__3 AND XYZ__4" after size = 3 and expecting result "XYZ__4 AND XYZ__5"
  
String expression = 'XYZ__3 AND XYZ__4';
Integer size = 3;
Pattern p = Pattern.compile('(\\d{1,2})');
Matcher m = p.matcher(expression);

String next = '';
while (m.find()) {
   next = String.valueOf(size + 1);
   expression = expression.replaceAll(m.group(1), next);
   size++;
}

system.debug(expression);
But, I am getting "XYZ__5 AND XYZ__5". How can I achieve this using pattern and Matcher