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Returns a permission object representing the permission necessary to make the connection represented by this object. This method returns null if no permission is required to make the connection. By default, this method returns java.security.AllPermission . Subclasses should override this method and return the permission that best represents the permission required to make a a connection to the URL.
I’ve been a little lax in posting lately. Since I have been doing a little more network based programming in Java as of late, and I wanted to post some more basic programming articles, I felt I would kill two birds with one stone. Fortunately most of it has been simple HTTP based requests, so it has been pretty simple stuff in terms of implementation. Most of how to do so is well documented already, so I won’t echo what has been written better by others. Instead, I will just share a simple example of how to establish an HTTP GET request using the HttpURLConnection and display the results to the console. package com.digiassn.blogspot;
On this blog I've shown a variety of ways using Java to open a URL connection, and then read data from that connection (including my " How to open and read from a URL with the Java URL and URLConnection classes " tutorial). In this example I'll show how to open a URL using the Java HttpURLConnection class. As the Javadoc states, this class is a subclass of the URLConnection class that "provides support for HTTP-specific features." Here's the source code for a complete Java class that demonstrates how to open a URL and then read from it, using the HttpURLConnection class. This class also demonstrates how to properly encode your URL using the encode method of the URLEncoder class.
The Java programming language provides two basic synchronization idioms: synchronized methods and synchronized statements . The more complex of the two, synchronized statements, are described in the next section. This section is about synchronized methods.
java.lang.Object | +-- java.awt.Robot public class Robot extends Object This class is used to generate native system input events for the purposes of test automation, self-running demos, and other applications where control of the mouse and keyboard is needed. The primary purpose of Robot is to facilitate automated testing of Java platform implementations. Using the class to generate input events differs from posting events to the AWT event queue or AWT components in that the events are generated in the platform's native input queue. For example, Robot.mouseMove will actually move the mouse cursor instead of just generating mouse move events.