Home > Java > JavaBase > Java determines whether a file directory exists (code attached)

Java determines whether a file directory exists (code attached)

Release: 2019-11-29 09:17:20
Original
2219 people have browsed it

Java determines whether a file directory exists (code attached)

java determines whether the file directory exists: (recommended: java video tutorial)

   /**
     * 判断文件夹是否存在
     * @param file
     */
    public void checkDirExists(File file) {
        if (file.exists()) {
            if (file.isDirectory()) {
                LOG.info("目录存在");
            } else {
                LOG.info("同名文件存在, 不能创建");
            }
        } else {
            LOG.info("目录不存在,创建目录");
            file.mkdir();
        }
    }
}
Copy after login

exists()

public boolean exists() tests whether the file or directory represented by this abstract pathname exists.

Throws: SecurityException if a security manager exists and its SecurityManager.checkRead(java.lang.String) method denies write access to the file or directory.

isDirectory() in java checks whether an object is a folder. The return value is of boolean type. Returns true if so, false otherwise.

The calling method is: object.isDirectory() without specifying parameters.

For more java knowledge, please pay attention to the java basic tutorial column.

The above is the detailed content of Java determines whether a file directory exists (code attached). For more information, please follow other related articles on the PHP Chinese website!

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template