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Home » Newcomers » Newcomers » JFrame.add() will not accept JButton(Cannot figure out why JFrame will not accept my JButton)
JFrame.add() will not accept JButton [message #1729619] Sat, 16 April 2016 07:21
Matthew Palmer is currently offline Matthew PalmerFriend
Messages: 1
Registered: April 2016
Junior Member
I am trying to create a very simple java GUI application in Eclipse. I have created a class that extends JFrame and I am able to open the blank JFrame without any issues. When I try to add a JButton to the JFrame I get the error: The method add(Component) in the type Container is not applicable for the arguments (JButton). I have been reading examples of how to do this for hours now and every example looks like what I have already done so why doesn't it work. My code is shown below.

 public class MainForm extends JFrame
	private static final long serialVersionUID = 1L;

	public MainForm ()
		super("   Encryption Suite");
		setLayout(new FlowLayout());
		setSize(500, 200);
		//Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();
		//setLocation((dim.width - 500)/2, (dim.height-200)/2);
		JButton btnRandomKeygen = new JButton("Random Keygen");
		//JButton btnEnDeCrypt = new JButton("Encrypt/Decrypt");
		//JButton btnChecksum = new JButton("MD5 Checksum");
		//JButton btnFileCompare = new JButton("File Compare");
		//JButton btnCryptanalysis = new JButton("Cryptanalysis");
		//JRadioButton rdBtnSub = new JRadioButton("Substitution");
		//JRadioButton rdBtnOnTmPd = new JRadioButton("One-Time Pad");

public class EncryptionSuite 
	public static void main(String[] args)
		final MainForm mainForm = new MainForm();
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