StartEnd.java Source code

Introduction

Here is the source code for StartEnd.java

Source

// : c12:StartEnd.java
// From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
// www.BruceEckel.com. See copyright notice in CopyRight.txt.

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

public class StartEnd {
    public static void main(String[] args) {
        String[] input = new String[] { "Java has regular expressions in 1.4",
                "regular expressions now expressing in Java", "Java represses oracular expressions" };
        Pattern p1 = Pattern.compile("re\\w*"), p2 = Pattern.compile("Java.*");
        for (int i = 0; i < input.length; i++) {
            System.out.println("input " + i + ": " + input[i]);
            Matcher m1 = p1.matcher(input[i]), m2 = p2.matcher(input[i]);
            while (m1.find())
                System.out.println("m1.find() '" + m1.group() + "' start = " + m1.start() + " end = " + m1.end());
            while (m2.find())
                System.out.println("m2.find() '" + m2.group() + "' start = " + m2.start() + " end = " + m2.end());
            if (m1.lookingAt()) // No reset() necessary
                System.out.println("m1.lookingAt() start = " + m1.start() + " end = " + m1.end());
            if (m2.lookingAt())
                System.out.println("m2.lookingAt() start = " + m2.start() + " end = " + m2.end());
            if (m1.matches()) // No reset() necessary
                System.out.println("m1.matches() start = " + m1.start() + " end = " + m1.end());
            if (m2.matches())
                System.out.println("m2.matches() start = " + m2.start() + " end = " + m2.end());
        }
    }
} ///:~