如何檢驗 Java 字串是否包含不區分大小寫的正則表示式模式
語法?i:x 使字串搜尋不區分大小寫。例如
public class RegCaseSense { public static void main(String[] args) { String stringSearch = "HI we are at java class."; // this won't work because the pattern is in upper-case System.out.println("Try this 1: " + stringSearch.matches(".*CLASS.*")); // the magic (?i:X) syntax makes this search case-insensitive, so it returns true System.out.println("Try this 2: " + stringSearch.matches("(?i:.*CLASS.*)")); } }
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