Launch the default or a particular web browser in Java

A. Launch the default web browser

1. Launch in Windows

import java.awt.Desktop;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;

public class LaunchBrowserTest {
    public static void main(String args[]) {
        String url = "http://www.google.com";

         //method 1 of launching web browser in Windows
         if (Desktop.isDesktopSupported()) {
                Desktop desktop = Desktop.getDesktop();
                try {
                    desktop.browse(new URI(url));
                } catch (IOException | URISyntaxException e) {
                    e.printStackTrace();
                }
            }

            //method 2 of launching web browser in Windows
            String os = System.getProperty("os.name").toLowerCase();
             Runtime rt = Runtime.getRuntime();
             if (os.indexOf("win") >= 0) {
                    try {
                            rt.exec("rundll32 url.dll,FileProtocolHandler " + url);
                     } catch (IOException  e) {
                             e.printStackTrace();
                      }
                }
         }
}

2. Launch in MAC

public class LaunchBrowserTest {
    public static void main(String args[]) {
        String url = "http://www.google.com";
        String os = System.getProperty("os.name").toLowerCase();
        Runtime rt = Runtime.getRuntime();

         if (os.indexOf("mac") >= 0) {
                  try {
                          rt.exec("open " + url);
                   } catch (IOException  e) {
                             e.printStackTrace();
                      }
                }
         }
}

3. Launch in other systems

public class LaunchBrowserTest {
    public static void main(String args[]) {
           String url = "http://www.google.com";
            Runtime rt = Runtime.getRuntime();
     
            try {
                    rt.exec("xdg-open " + url);
                } catch (IOException e) {
                    e.printStackTrace();
                }
       }
}

B. Launch a particular web browser

1. Launch in Windows

public class LaunchBrowserTest {
    public static void main(String args[]) {
        String url = "http://www.google.com";
        String os = System.getProperty("os.name").toLowerCase();
        Runtime rt = Runtime.getRuntime();

        try {
            //launch the google chrome
            String[] cmds = new String[] {"C:/Program Files (x86)/Google/Chrome/Application/chrome.exe", url};
             //launch the internet explorer
             // String[] cmds = new String[] {"C:/Program Files (x86)/Internet Explorer/iexplore.exe", url};                      //launch the firefox
             //String[] cmds = new String[] {"<your path>/firefox.exe", url};

            rt.exec(cmds);
        } catch (IOException e) {
                    e.printStackTrace();
                }
       }
}

2. Launch in Unix/Linux

public class LaunchBrowserTest {
    public static void main(String args[]) {
        String url = "http://www.google.com";
        String os = System.getProperty("os.name").toLowerCase();
        Runtime rt = Runtime.getRuntime();

        if (os.indexOf("nix") >= 0 || os.indexOf("nux") >= 0) {
              try {
                  //launch the google chrome
                   rt.exec(new String[] {"chrome", url});
                  //or
                   // rt.exec(new String[]{"sh", "-c", "chrome\"+url+"\"});
               
                  //launch the firefox
                   rt.exec(new String[] {"firefox", url});
                  //or
                  // rt.exec(new String[]{"sh", "-c", "firefox\"+url+"\"});
              } catch (IOException e) {
                    e.printStackTrace();
                }
       }
}

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