title: 2 Errors in Java and no clue
body: <p>I am a beginner in programming, and I am trying to finish one of my first small programs in java, already solved a lot of errors, and I have 2 errors left. I think I've already imported all needed things, but the errors still appears.</p>
  
  <p>The error:</p>
  
  <ol>
  <li>The method SetLayout(FlowLayout) is undefined for the type Container</li>
  <li>B1 cannot be resolved to a type   ( happens also for B2 and B5 )</li>
  </ol>
  
  <p>Here's my code:</p>
  
  <pre><code>    import java.awt.Color;
      import java.awt.Container;
      import java.awt.FlowLayout;
  
      import javax.swing.JButton;
      import javax.swing.JFrame;
      import javax.swing.JTextField;
  
      class Przyciski3 extends JFrame{
      JTextField t = new JTextField(20);
      JButton b1 = new JButton("B");
      JButton b2 = new JButton("A");
      JButton b5 = new JButton("Reset");
      int i=0;
      int j=0;
  
  
      Przyciski3(){
      setTitle("Przyciski3");
      Container cp = getContentPane();
      cp.SetLayout(new FlowLayout());
      cp.add(b1);
      cp.add(b2);
      cp.add(t);
      cp.add(b5);
      setDefaultCloseOperation(EXIT_ON_CLOSE);
      setSize(500,200);
      setVisible(true);
      b1.addActionListener(new B1());
      b2.addActionListener(new B2());
      b5.addActionListener(new B5());
      b1.setBackground(Color.green);
      b2.setBackground(Color.blue);
      b5.setBackground(Color.black);
      }
      }
  class B1 implements ActionListener{
  public void actionPerformed(ActionEvent 0){
  i++;
  t.setText(""+i);
  }
  }
  
  class B2 implements ActionListener {
  public void actionPerformed(ActionEvent 0){
  j++;
  t.setText(""+j);
  }
  }
  public static void main (String[] arg){
  JFrame f = new Przyciski();
  }
  </code></pre>
  
  <p>Any suggestions?</p>