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
下面的例子展示了逻辑运算符的用法。
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面的程序,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