import java.util.regex.*;

class Regex1{
　public static void main(String args[]) {
　　String content="For my money, the important thing "+"about the meeting was bridge-building";
　　String regEx="a|f"; //表示a或f 
　　Pattern p=Pattern.compile(regEx);
　　Matcher propsMatcher=p.matcher(content);
　　while(m.find()){
      int startIndex = propsMatcher.start(); // index of start
      int endIndex = propsMatcher.end(); // index of end + 1
      // retrieve the matching substring
       String currentMatch = content.substring(startIndex, endIndex);
　　  System.out.println(currentMatch);    
   }
　}
}