Question

lets say i have a list of urls such as

http://stackexchange.com
https://stackoverflow.com/users/login
http://careers.stackoverflow.com
http://chat.stackoverflow.com
http://meta.stackoverflow.com
https://stackoverflow.com/about

this list is in a text file.

now i would like to process all the urls in one go. The below coding is the processor.

String sourceUrlString="http://stackexchange.com";
    if (args.length==0)
      System.err.println("Using default argument of \""+sourceUrlString+'"');
    else
        sourceUrlString=args[0];
    if (sourceUrlString.indexOf(':')==-1) sourceUrlString="file:"+sourceUrlString;
    Source source=new Source(new URL(sourceUrlString));
    String renderedText=source.getRenderer().toString();
    System.out.println("\nSimple rendering of the HTML document:\n");
    System.out.println(renderedText);

as you see, the coding above only can process one url at one time where i must manually key in the url at the sourceurlstring. How do i process all of the urls in the text file in one go ?

Answer 1

• Learn what methods are by reading this part of the Java tutorial.
• Implement a method taking one URL as argument and processing it.
• Learn how to read a text file by reading this part of the Java tutorial.
• Implement a method to read the text file line by line, and call your first method for each line read in the file.