#

| Chapter 28 The java.net Package |

## 28.8 java.net.FileNameMap (JDK 1.1)

###

This interface defines a single method that is called to obtain the MIME type of a file based on the name of a file. The `fileNameMap` field of the `URLConnection` class refers to an object that implements this interface. The filename-to-file-type map it implements is used by the static `URLConnection.guessContentTypeFromName()` method.

    public abstract interface FileNameMap {
        // Public Instance Methods
                public abstract String getContentTypeFor(String fileName);
    }

### Type Of:

URLConnection.fileNameMap

java.net.DatagramSocketImpl (JDK 1.1) |  | java.net.HttpURLConnection (JDK 1.1)