Control the pattern case : Pattern « Regular Expressions « Java Tutorial

1. Java Tutorial
2. Regular Expressions
3. Pattern

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

public class MainClass {
  public static void main(String args[]) {
    Pattern p = Pattern.compile("java", Pattern.CASE_INSENSITIVE);

    String candidateString = "Java. java JAVA jAVA";

    Matcher matcher = p.matcher(candidateString);

    // display the latter match
    System.out.println(candidateString);
    matcher.find(11);
    System.out.println(matcher.group());

    // display the earlier match
    System.out.println(candidateString);
    matcher.find(0);
    System.out.println(matcher.group());
  }
}
/*

*/

Java. java JAVA jAVA
JAVA
Java. java JAVA jAVA
Java