要从字符串中删除换行符,空格和制表符,请如下所示将其替换为空。
replaceAll("[\\n\\t ]", "");
在上面,新行,制表符和空格将被替换为空,因为我们已经使用了 replaceAll()
以下是完整的示例。
public class Demo { public static void main(String[] args) { String originalStr = "Demo\n\tText"; System.out.println("Original String with tabs, spaces and newline: \n"+originalStr); originalStr = originalStr.replaceAll("[\\n\\t ]", ""); System.out.println("\nString after removing tabs, spaces and new line: "+originalStr); } }
输出结果
Original String with tabs, spaces and newline: Demo Text String after removing tabs, spaces and new line: DemoText