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Checking internet connectivity in Java
Internet connectivity can be checked using java.net.URL and java.net.URLConnection class. Following are the required steps.
Create a URL object and pass it the URL say Google
Call URL.openConnection() method to get a URLConnection object.
Call URLConnection.connect() method to check the internet connectivity. connect() method opens a communications link to the resource referenced by the passed URL if a connection has not already been established.
Example
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
public class Tester {
public static void main(String[] args) {
try {
URL url = new URL("http://www.google.com");
URLConnection connection = url.openConnection();
connection.connect();
System.out.println("Internet is connected");
} catch (MalformedURLException e) {
System.out.println("Internet is not connected");
} catch (IOException e) {
System.out.println("Internet is not connected");
}
}
}Output
Internet is connected
Updated on: 18-Jun-2020
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