title: IntelliJ: cannot resolve symbol "setVisible"
body: <p>So I just started using IntelliJ and already encountered a problem, it involves IntelliJ and JFrame. I was just starting my code then I noticed the red text after compiling the error message said that the .setVisible cannot be resolved, how do I fix this? the code so far is this...</p>
  
  <pre><code>import javax.swing.*;
  import java.awt.event.*;
  import java.awt.*;
  import java.util.*;
  
  public class Test_001 {
      JFrame frameOne = new JFrame("Test");
      frameOne.setVisible(true);
  }//Class
  </code></pre>
  
  <p>My project uses the SDK java.version 1.8.0.7 </p>