Java如何重置正则表达式的模式?

在Java编程中,如何重置正则表达式的模式?

以下示例演示如何使用PatternPattern.compile()方法和Matcher类的m.find()方法来重置正则表达式的模式。

package com.yiibai;

import java.util.regex.Matcher; import java.util.regex.Pattern; public class SplittingString { public static void main(String[] args) throws Exception { Matcher m = Pattern.compile("[frb][aiu][gx]").matcher("fix the rug with bags"); while (m.find()) System.out.println(m.group()); m.reset("fix the rig with rags"); while (m.find()) System.out.println(m.group()); } } 
Java

上述代码示例将产生以下结果 -

fix
rug
bag
fix
rig
rag
Shell

示例-2

以下是重新设置正则表达式模式的另一个示例:

package com.yiibai;

import java.util.regex.Matcher; import java.util.regex.Pattern; public class SplittingString2 { public static void main(String args[]) { Pattern p = Pattern.compile("\\d"); Matcher mat1 = p.matcher("9652018244"); while (mat1.find()) { System.out.println("\t" + mat1.group()); } mat1.reset(); System.out.println("After done resetting the Matcher, it should be like this"); while (mat1.find()) { System.out.println("\t" + mat1.group()); } } } 
Java

上述代码示例将产生以下结果。

    9
    6
    5
    2
    0
    1
    8
    2
    4
    4
After done resetting the Matcher, it should be like this
    9
    6
    5
    2
    0
    1
    8
    2
    4
    4
Shell
 

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转载自www.cnblogs.com/borter/p/9617142.html
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