Matcher.replaceAll method : Matcher « Regular Expressions « Java Tutorial

1. Java Tutorial
2. Regular Expressions
3. Matcher

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class MainClass {
  public static void main(String args[]) {
    Pattern p = Pattern.compile("(i|I)ce");

    String candidateString = "Ice. ice Ice Ice.";

    Matcher matcher = p.matcher(candidateString);
    String tmp = matcher.replaceAll("Java");

    System.out.println(tmp);
  }
}