title: writing program in eclipse causes errors in command prompt
body: <p>so I'm writing a program for a class and it needs to be runnable via command prompt. IE javac filename.java then java filename. I wrote the code in eclipse which is why I'm having trouble. My code is as follows:</p>
  
  <pre><code>    import javax.swing.JApplet;
      import javax.swing.JButton;
  
      import java.awt.event.ActionEvent;
      import java.awt.event.ActionListener;
      import javax.swing.JLabel;
      import javax.swing.SwingConstants;
      import com.jgoodies.forms.layout.FormLayout;
      import com.jgoodies.forms.layout.ColumnSpec;
      import com.jgoodies.forms.factories.FormFactory;
      import com.jgoodies.forms.layout.RowSpec;
      import java.awt.Font;
  
  
      public class QA extends JApplet implements ActionListener{
  
          int y=0;
          int x=0;
          int a=0;
          int b=0;
          static int q=-1;
  
          JButton btnYes = new JButton("YES");
          JButton btnNo = new JButton("NO");
          static JLabel lblNewLabel = new JLabel("Use the buttons to answer this question: Do you like pizza?");
  
          public QA() {
  
              getContentPane().setLayout(new FormLayout(new ColumnSpec[] {
                      ColumnSpec.decode("220px"),
                      FormFactory.UNRELATED_GAP_COLSPEC,
                      ColumnSpec.decode("220px"),},
                  new RowSpec[] {
                      RowSpec.decode("97px"),
                      RowSpec.decode("50px"),
                      RowSpec.decode("73px"),
                      RowSpec.decode("42px"),}));
              btnYes.setFont(new Font("Tahoma", Font.PLAIN, 10));
  
  
              getContentPane().add(btnYes, "1, 4, right, fill");
              btnYes.setActionCommand("Yes");
              btnYes.addActionListener(this);
              btnNo.setFont(new Font("Tahoma", Font.PLAIN, 10));
  
              getContentPane().add(btnNo, "3, 4, left, fill");
              btnNo.setActionCommand("No");
              btnNo.addActionListener(this);
  
              lblNewLabel.setHorizontalAlignment(SwingConstants.CENTER);
              getContentPane().add(lblNewLabel, "1, 2, 3, 1, fill, fill");
          }
  
          public void actionPerformed(ActionEvent evt) {
              Object cmd = evt.getActionCommand();
              if (cmd == "Yes")
              {
                  ++q;
              }
              else if (cmd == "No")
              {
                  ++q;
          }
      }
  }
  }
  </code></pre>
  
  <p>the errors I get are along the lines of:</p>
  
  <pre><code>    C:\Users\*****\Desktop&gt;javac QA.java
      QA.java:8: error: package com.jgoodies.forms.layout does not exist
      import com.jgoodies.forms.layout.FormLayout;
                                      ^
      QA.java:9: error: package com.jgoodies.forms.layout does not exist
      import com.jgoodies.forms.layout.ColumnSpec;
                                      ^
      QA.java:10: error: package com.jgoodies.forms.factories does not exist
      import com.jgoodies.forms.factories.FormFactory;
                                         ^
      QA.java:11: error: package com.jgoodies.forms.layout does not exist
      import com.jgoodies.forms.layout.RowSpec;
                                      ^
      QA.java:32: error: cannot find symbol
                      getContentPane().setLayout(new FormLayout(new ColumnSpec[] {
                                                     ^
        symbol:   class FormLayout
        location: class QA
      QA.java:32: error: cannot find symbol
                      getContentPane().setLayout(new FormLayout(new ColumnSpec[] {
                                                                    ^
        symbol:   class ColumnSpec
        location: class QA
      QA.java:33: error: cannot find symbol
                                      ColumnSpec.decode("220px"),
                                      ^
        symbol:   variable ColumnSpec
        location: class QA
      QA.java:34: error: cannot find symbol
                                      FormFactory.UNRELATED_GAP_COLSPEC,
                                      ^
        symbol:   variable FormFactory
        location: class QA
      QA.java:35: error: cannot find symbol
                                      ColumnSpec.decode("220px"),},
                                      ^
        symbol:   variable ColumnSpec
        location: class QA
      QA.java:36: error: cannot find symbol
                              new RowSpec[] {
                                  ^
        symbol:   class RowSpec
        location: class QA
      QA.java:37: error: cannot find symbol
                                      RowSpec.decode("97px"),
                                      ^
        symbol:   variable RowSpec
        location: class QA
      QA.java:38: error: cannot find symbol
                                      RowSpec.decode("50px"),
                                      ^
        symbol:   variable RowSpec
        location: class QA
      QA.java:39: error: cannot find symbol
                                      RowSpec.decode("73px"),
                                      ^
        symbol:   variable RowSpec
        location: class QA
      QA.java:40: error: cannot find symbol
                                      RowSpec.decode("42px"),}));
                                      ^
        symbol:   variable RowSpec
        location: class QA
      14 errors
  </code></pre>
  
  <p>Is there anything I can do? Thanks for any help!</p>