JAVA free example : Regular Expression Search and Replace Example tutorial sample code

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Regular Expression Search and Replace Example

(JAVA free example written by Anton Zamov.)

Regular Expression Search and Replace Example

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
}
}

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