regtest.java

采用JAVA开发

package com.gctech.sms.sdsms.common;

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

/**
* <p>Title:正则表达式试验类</p>
* <p>Description:</p>
* <p>Copyright: GCTech (c) 2004-6-24</p>
* <p>Company: 国创科技</p>
* <p>Email: [e-mail]</p>
*
*
* @version 1.0
* @author liyi
*/
public class RegTest {
	public static void find() {
		Pattern p = null; //正则表达式 

		Matcher m = null; //操作的字符串 

		boolean b;

		String s = null;

		StringBuffer sb = null;

		int i = 0;

		//字符串查找 

		p = Pattern.compile("cat");

		m = p.matcher("one cat two cats in the yard");

		sb = new StringBuffer();

		while (m.find()) {

			m.appendReplacement(sb, "dog");

			i++;

		}

		m.appendTail(sb);

		System.out.println(sb.toString() + "<br>");

		System.out.println(i + "<br>");

		i = 0;

		p = Pattern.compile("cat");

		m = p.matcher("one cat two ca tsi nthe yard");

		sb = new StringBuffer();

		while (m.find()) {

			m.appendReplacement(sb, "dog");

			i++;

		}

		m.appendTail(sb);

		System.out.println(sb.toString() + "<br>");

		System.out.println(i + "<br>");

		p = Pattern.compile("cat");

		m = p.matcher("one cat two cats in the yard");

		p = m.pattern();

		m = p.matcher("bacatab");

		b = m.matches();

		System.out.println(b + "<br>");

		s = m.replaceAll("dog");

		System.out.println(s + "<br>");

		i = 0;

		p = Pattern.compile("(fds){2,}");

		m = p.matcher("dsa da fdsfds aaafdsafds aaf");

		sb = new StringBuffer();

		while (m.find()) {

			m.appendReplacement(sb, "dog");

			i++;

		}

		m.appendTail(sb);

		System.out.println(sb.toString() + "<br>");

		System.out.println(i + "<br>");

		p = Pattern.compile("cat");

		m = p.matcher("one cat two cats in the yard");

		sb = new StringBuffer();

		while (m.find()) {

			m.appendReplacement(sb, "<font color=\"red\">cat</font>");

		}

		m.appendTail(sb);

		System.out.println(sb.toString() + "<br>");

		String aa = sb.toString();

		System.out.println(aa + "<br>");
	}
	public static void main(String[] args) {
		find();
	}
}