Java 正则表达式 - 逻辑运算符 [X|Y] 匹配

描述

逻辑运算符 [X|Y] 匹配 X 或 Y。

示例

以下示例展示了逻辑运算符的使用方式。

package com.tutorialspoint;

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

public class LogicalOperatorDemo {
   private static final String REGEX = "t|o";
   private static final String INPUT = "Welcome to TutorialsPoint.COM";

   public static void main(String[] args) {
      // create a pattern
      Pattern  pattern = Pattern.compile(REGEX);
      
      // get a matcher object
      Matcher matcher = pattern.matcher(INPUT); 

      while(matcher.find()) {
         //Prints the start index of the match.
         System.out.println("Match String start(): "+matcher.start());
      }
   }
}

让我们编译并运行上述程序，这将产生以下结果 −

Match String start(): 4
Match String start(): 8
Match String start(): 9
Match String start(): 13
Match String start(): 14
Match String start(): 21
Match String start(): 24