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How to replace substrings containing any integer in java?

How to replace a substring in java of the form ": [number]:"

example:

string="Hello:6:World"

After replacement

HelloWorld
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4 answers 


ss="hello:909:world";

do the following:



String value = ss.replaceAll("[:]*[0-9]*[:]*","");
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You can use regex to define the pattern you want

String pattern = "(:\d+:)";
string EXAMPLE_TEST = ':12:'
System.out.println(EXAMPLE_TEST.replaceAll(pattern, "text to replace with"));


should work depending on what exactly you want to replace ...

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Do it like

String s = ":6:";     
s = s.replaceAll(":", "");
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Edit 1: After the question has been changed, one should use

:\d+:

and inside Java

:\\d+:

This is the answer to replacing :: .

This is the regex you should be using:

:\d*:

Regular expression visualization

Debuggex Demo

And here's the running JavaCode running:

String str = "Hello :4: World";
String s = str.replaceAll(":\\d*:","");
System.out.println(s);

One problem with replaceAll is often that the corrected string is returned . The string object from which replaceAll was called does not change.

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