How to close the whole browser window by keeping the webDriver active?

Question

In my batch execution, multiple browsers with multiple tabs are getting opened for first scenario. I wanted to close all these browsers before starting second scenario.

Answer 1

This code closes all the opened windows and then brings back control to the main window.

public static void switchTab() {            
    try {
        Set windows = webDriver.getWindowHandles();
        Iterator iter = windows.iterator();
        String[] winNames=new String[windows.size()];
        int i=0;
        while (iter.hasNext()) {
            winNames[i]=iter.next();
            i++;
        }

        if(winNames.length > 1) {
            for(i = winNames.length; i > 1; i--) {
                webDriver.switchTo().window(winNames[i - 1]);
                webDriver.close();
            }
        }
        webDriver.switchTo().window(winNames[0]);
    }
    catch(Exception e){         
        e.printStackTrace();
    }
}