Thread: Problem with swing GUI components in JPanel

Ok i am sorry that i didn't include the code.

Here it is:

package kim.contracts.view;
 
import java.awt.*;
import javax.swing.*; 
import javax.swing.border.Border;
 
public class LoginView
{
	public LoginView()
	{
		JFrame loginFrame;
		JLabel login, username, password;
		JTextField usernametxt;
		JPasswordField passwordtxt;
		JPanel loginPanel;
		Border border;
		JButton loginBtn, resetBtn;
 
		loginFrame = new JFrame("Contracts Login");
		login = new JLabel("Log Hier In:");
		loginPanel = new JPanel(new GridBagLayout());
		border = BorderFactory.createLineBorder(Color.BLUE);
 
 
		loginFrame.setSize(600,300);
		loginFrame.setLayout(null);
		loginFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		loginFrame.setLocation(600,400);
		loginFrame.setVisible(true);
 
		login.setSize(100,20);
		login.setVisible(true);
		login.setLocation(50,5);
		loginFrame.add(login, BorderLayout.NORTH);
 
		loginPanel.setSize(500,200);
		loginPanel.setBorder(border);
		loginPanel.setLocation(40,30);
		loginPanel.setVisible(true);
		loginFrame.add(loginPanel, BorderLayout.CENTER);
 
		GridBagConstraints gbc = new GridBagConstraints();
		gbc.insets =  new Insets(5,15,0,0);
 
		username = new JLabel("Gebruikersnaam: ");
		gbc.gridx = 0;
		gbc.gridy = 0;
		loginPanel.add(username, gbc);
		username.setSize(100,20);
		username.setVisible(true);
 
		usernametxt = new JTextField(10);
		gbc.gridx = 1;
		gbc.gridy = 0;
		loginPanel.add(usernametxt, gbc);
		usernametxt.setVisible(true);
 
		password = new JLabel("Paswoord: ");
		gbc.gridx = 0;
		gbc.gridy = 1;
		loginPanel.add(password, gbc);
		username.setSize(100,20);
		username.setVisible(true);
 
		passwordtxt = new JPasswordField(10);
		gbc.gridx = 1;
		gbc.gridy = 1;
		loginPanel.add(passwordtxt, gbc);
		usernametxt.setVisible(true);
 
		loginBtn = new JButton("Log in");
		gbc.gridx = 0;
		gbc.gridy = 2;
		loginPanel.add(loginBtn, gbc);
		loginBtn.setVisible(true);
 
		resetBtn = new JButton("Reset velden");
		gbc.gridx = 1;
		gbc.gridy = 2;
		loginPanel.add(resetBtn, gbc);
		resetBtn.setVisible(true);
 
	}
}