e024. renaming a file or directory.txt

这里面包含了一百多个JAVA源文件

// File (or directory) with old name
    File file = new File("oldname");
    
    // File (or directory) with new name
    File file2 = new File("newname");
    
    // Rename file (or directory)
    boolean success = file.renameTo(file2);
    if (!success) {
        // File was not successfully renamed
    }