How to remove extra empty lines from XML file?

Question

In short; i have many empty lines generated in an XML file, and i am looking for a way to remove them as a way of leaning the file. How can i do that ?

For detailed

Answer 1

I am using below code:

System.out.println("Start remove textnode");
        i=0;
        while (parentNode.getChildNodes().item(i)!=null) {
            System.out.println(parentNode.getChildNodes().item(i).getNodeName());
            if (parentNode.getChildNodes().item(i).getNodeName().equalsIgnoreCase("#text")) {
                parentNode.removeChild(parentNode.getChildNodes().item(i));
                System.out.println("text node removed");
            }
            i=i+1;

        }