Java示例文件只读 Java示例文件的最后修改日期 Java示例文件只读 Java示例文件只读 import java.io.File; import java.io.IOException; public class FileReadAttribute { public static void main(String[] args) throws IOException { File file = new File("c:/file.txt"); file.setReadOnly(); if(file.canWrite()) { System.out.println("This file is writable"); } else { System.out.println("This file is read only"); } file.setWritable(true); if(file.canWrite()) { System.out.println("This file is writable"); } else { System.out.println("This file is read only"); } } } Java示例文件的最后修改日期 Java示例文件只读