Replace numbers inside a string using Regex

Question

I want to replace Html.fromHtml("&#160") + "| Guys hi " + Pattern.compile("\\\\d+") with a "hey". But, my code doesn't want to do that :/ What should I change?

My code:

myString.replace(Html.fromHtml("&#160") + "| Guys hi " + Pattern.compile("\\d+"), "hey");

Explanation:

• "&#160" represents a space in HTML
• Pattern.compile("\\\\d+") finds any number at the end of string.

Answer 1

String replaceAll takes a regular expression, String replace does not. Using a pattern is an alternative option (not a supplementary one). Also, String (s) are immutable. You want something like,

myString = myString.replaceAll(Html.fromHtml("&#160") + "- Guys hi \\d+", "hey");

or

Pattern p = Pattern.compile(Html.fromHtml("&#160") + "- Guys hi \\d+");
Matcher m = p.matcher(myString);
myString = m.replaceAll("hey");