字符\\0nn
匹配八进制值为0nn
(0≤n≤7
)的字符。
示例
以下示例显示了字符匹配的用法。
package com.yiibai;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class CharactersDemo {
private static final String REGEX = "\\\\007";
private static final String INPUT = "abc\\007abc";
public static void main(String[] args) {
// create a pattern
Pattern pattern = Pattern.compile(REGEX);
// get a matcher object
Matcher matcher = pattern.matcher(INPUT);
if(matcher.find()) {
//Prints the start index of the match.
System.out.println("Match String start(): "+matcher.start());
}
}
}
编译并运行上面的程序,这将产生以下结果 -
Match String start(): 3