import java.util.regex.*;
    
    public class BasicReplace 
    {
        public static void main(String[] args) 
       {
            CharSequence inputStr = "a b c a b c";
            String patternStr = "a";
            String replacementStr = "x";
    
            // Compile regular expression
            Pattern pattern = Pattern.compile(patternStr);
    
            // Replace all occurrences of pattern in input
            Matcher matcher = pattern.matcher(inputStr);
            String output = matcher.replaceAll(replacementStr);
            // x b c x b c
        }
    }

Category:

JAVA

 
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