[Chapter 28] 28.22 java.net.URL (JDK 1.0)
Author: David Flanagan
Date: Thu Jul 31 16:31:19 1997

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| Chapter 28 The java.net Package |

## 28.22 java.net.URL (JDK 1.0)

###

This class represents a URL (a Uniform Resource Locator) and allows the data referred to by the URL to be downloaded. A URL may be specified as a single string or with separate protocol, host, port, and file specifications. Relative URLs may also be specified with a `String` and the `URL` object that it is relative to.

`getFile()`, `getHost()`, `getPort()`, `getProtocol()`, and `getRef()` return the various portions of the URL specified by a `URL` object. `sameFile()` determines whether a `URL` object refers to the same file as this one.

The data or object referred to by a URL may be downloaded from the Internet in three ways: through a `URLConnection` created with `openConnection()`, through an `InputStream` created by `openStream()`, or through `getContent()`, which returns the URL contents directly, if an appropriate `ContentHandler` can be found.

    public final class URL extends Object implements Serializable {
        // Public Constructors
                public URL(String protocol, String host, int port, String file) throws MalformedURLException;
                public URL(String protocol, String host, String file) throws MalformedURLException;
                public URL(String spec) throws MalformedURLException;
                public URL(URL context, String spec) throws MalformedURLException;
        // Class Methods
                public static synchronized void setURLStreamHandlerFactory(URLStreamHandlerFactory fac);
        // Public Instance Methods
                public boolean equals(Object obj);  // Overrides Object
                public final Object getContent() throws IOException;
                public String getFile();
                public String getHost();
                public int getPort();
                public String getProtocol();
                public String getRef();
                public int hashCode();  // Overrides Object
                public URLConnection openConnection() throws IOException;
                public final InputStream openStream() throws IOException;
                public boolean sameFile(URL other);
                public String toExternalForm();
                public String toString();  // Overrides Object
        // Protected Instance Methods
                protected void set(String protocol, String host, int port, String file, String ref);
    }

### Passed To:

Applet.getAudioClip(), Applet.getImage(), Applet.play(), AppletContext.getAudioClip(), AppletContext.getImage(), AppletContext.showDocument(), HttpURLConnection(), Toolkit.getImage(), URL(), URL.sameFile(), URLConnection(), URLStreamHandler.openConnection(), URLStreamHandler.parseURL(), URLStreamHandler.setURL(), URLStreamHandler.toExternalForm()

### Returned By:

Applet.getCodeBase(), Applet.getDocumentBase(), AppletStub.getCodeBase(), AppletStub.getDocumentBase(), Class.getResource(), ClassLoader.getResource(), ClassLoader.getSystemResource(), URLConnection.getURL()

### Type Of:

URLConnection.url

java.net.UnknownServiceException (JDK 1.0) |  | java.net.URLConnection (JDK 1.0)