XY
优质
小牛编辑
125浏览
2023-12-01
描述 (Description)
逻辑运算符[XY]匹配X后跟Y.
例子 (Example)
以下示例显示了逻辑运算符的用法。
package cn.xnip;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class LogicalOperatorDemo {
private static final String REGEX = "to";
private static final String INPUT = "Welcome to xnip.cn";
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(): 8
Match String start(): 13