A:
The error is because you are trying to read from undefined variable url
Change your code to
    String line;
    while((line= br.readLine())!= null)
    {
        url = line.substring(url.indexOf("") + 8, url.indexOf("/") + 1);
    }
    BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
hope this helps :)
Former President Barack Obama
Barack Obama
THERE ARE SOME THINGS in life that are irreplaceable. Think of your car, your house, your dog. At the end of the day, you need something to rely on. This is the case with Barack Obama. If he had gone away tomorrow, life would still go on. The world would continue to turn. On his Facebook page, he has posted a statement saying he is taking a leave from office to "recharge his batteries and spend time with his family." Just as he was the man who brought us the Affordable Care Act, he will always be known as the president who got us rid of the Osama Bin Laden and got us back on the road to recovery from the financial crisis. But he was and is much, much more than that. When his children's play was interrupted by the presidential motorcade, an eyewitness told the press, "We were all crying. We were crying and we were happy." When he was sworn in as president in 2009, Obama promised to "restore the honor and dignity of the Oval Office." He became the first sitting president to visit U.S. troops in Afghanistan. His actions and words on foreign policy changed the world. He came back from Newtown and called for action, and when it didn't happen he tried again. He introduced freedom to millions. He was called to show up to represent us when we needed him the most. He always said he would be there for you and me.
For that, I will always be grateful.
My college newspaper was carrying a photo of a boy. He was sitting in a park with his dog, and he had tears in his eyes as he watched the motorcade pass. He was the only child I ever knew who came home with a perfect attendance record. His dad 3125841983
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