Java正则表达式的模式匹配示例

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package date0804.demo1;

import java.util.regex.Pattern;

public class RegularExpres {

	public static void main(String[] args) {
		//中括号只代表一位字符,*代表任意位,问号代表一位
		
		
		//匹配首字母为a,末尾字母为b的任意字符串
		boolean b1 = Pattern.matches("a*d", "aaaaad");
		
		//匹配首字母为a,末尾字母为b的中间为任意一个字符（包括空字符）的任意字符串
		boolean b2 = Pattern.matches("a?d", "ad");
		
		//匹配首字母为a,末尾字母为b,中间为a或b或c的任意字符串
		boolean b3 = Pattern.matches("a[abc]d", "abd");
		
		//匹配首字母为a,末尾字母为b,中间为排除a或b或c的任意字符串
		boolean b4 = Pattern.matches("a[^abc]d", "abd");
		
		//匹配a-z或A-Z任意字符
		boolean b5 = Pattern.matches("[a-zA-Z]", "a");
		
		//a-d,m-p
		boolean b6 = Pattern.matches("[a-dm-p]", "l");
		
		//d,e,f
		boolean b7 = Pattern.matches("[a-z&&[def]]", "d");
		
		//a-d,m-p
		boolean b8 = Pattern.matches("[a-dm-p]", "l");
		
		//digit
		boolean b9 = Pattern.matches("[0-9]", "?");
		
	}
}

Java正则表达式的模式匹配示例

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原文地址：http://my.oschina.net/zzw922cn/blog/487436