使用正则表达式验证语句

Question

我编写了一个正则表达式来检查以下语句的验证

String pattern= "^how many [r|R]upees is (([A-Za-z\\s])+)\\?$";

String statment1 = "HOW MANY RUPEES IS RED BLUE GOLD ?"; // all caps
String statment2 = "how many Rupees is red blue Gold?";
System.out.println(statment1.matches(pattern));
System.out.println(statment2.matches(pattern));

输出

false
true

如果声明所有内容是否在大写下

，如何验证

Answer 1

只需在模式中添加(?i)不区分大小写的修饰符。

String pattern = "(?i)^how many rupees is ([a-z\\s]+)\\?$";

Answer 2

您可以尝试使用StringUtils isAllUpperCase

在没有正则表达式的情况下执行此操作

  

检查CharSequence是否仅包含大写字符。

!StringUtils.isAllUpperCase("HOW MANY RUPEES IS RED BLUE GOLD ?") = false
!StringUtils.isAllUpperCase("how many Rupees is red blue gold?") = true