java proxy
You can either specify it on command line or within program code by setting three system properties as below:
proxyHost=proxy_host_name
proxyPort=proxy_port
proxySet=true
For example if a proxy is running on localhost at port 8080 then we can use:
java -DproxyHost=localhost -DproxyPort=8080 -DproxySet=true YourProgram
The same properties can be set within your Java program by System.getProperties().put(key, value);
That's it folks!