import java.util.regex.Matcher;
import java.util.regex.Pattern;
class RegExpr3 {
public static void main(String args[]) {
Pattern pat = Pattern.compile("test");
Matcher mat = pat.matcher("test 1 2 3 test");
while (mat.find()) {
System.out.println("test found at index " + mat.start());
}
}
}