Tech Overload Blog

jframe-dispose-method 0

JFrame dispose method

JFrame.dispose() is used to  destroy JFrame window and clean it up from the operating system.Read also more about System.exit(0) import javax.swing.JFrame; import javax.swing.JButton; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; public class JFrameMethods { public JFrame frame;...

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver java error 0

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver java error

After executing below code i get java.lang.ClassNotFoundException: com.mysql.jdbc.Driver error.How do i go about solving this mysql server connection error with java. Code import java.sql.DriverManager; import java.sql.Connection; import java.sql.ResultSet; import java.sql.Statement; import javax.swing.JOptionPane; public class DbConnection...

How to create a simple Java JTree menu 0

How to create a simple Java JTree menu

Below code shows how to create a simple system menu using java JTree which is a swing component.JTree swing component has to be placed inside a JFrame window import javax.swing.JFrame; import javax.swing.tree.DefaultMutableTreeNode; import javax.swing.JTree;...

JTextField-setEnabled-method 0

JTextField setEnabled Method

Below code shows how to enable or disable JTextField added in a JFrame window.JTextField inherits its methods from the class swing.Note the differences between the two fields /** * * @author Eric * site:www.techoverload.net...

How to create Read Only JTextField 0

How to create Read Only JTextField

Below code creates a read-only JTextField .   /** * * @author Eric * site:www.techoverload.net */ import javax.swing.JFrame; import javax.swing.JTextField; import javax.swing.JLabel; public class JTextFieldExample extends JFrame{ JTextFieldExample() { super(“JFrame Example”); JTextField userField=new JTextField();...

creating-jtextfield 0

How to create a JTextField and adding it to a JFrame

Below code creates a JTextField and adds it to a JFrame window. import javax.swing.JFrame; import javax.swing.JTextField; import javax.swing.JLabel; public class JTextFieldExample extends JFrame{ public JTextField userField; public JLabel userLabel; JTextFieldExample() { super(“JFrame Example”); userField=new...

Creating a Label in Vaadin Applications 0

Creating a Label in Vaadin Applications

Below code shows how to create Label in Vaadi  Applications. import com.vaadin.Application; import com.vaadin.terminal.Sizeable; import com.vaadin.ui.*; import com.vaadin.ui.Button.ClickEvent; import com.vaadin.ui.Button.ClickListener; /** * Main application class. */ public class TestApplication extends Application { public Window...

Adding TextField and Button to Vaadin Application 0

Adding TextField and Button to Vaadin Application

Below code adds TextField and Button to a Vaadin application MainWindow. import com.vaadin.Application; import com.vaadin.terminal.Sizeable; import com.vaadin.ui.*; import com.vaadin.ui.Button.ClickEvent; import com.vaadin.ui.Button.ClickListener; /** * Main application class. */ public class TestApplication extends Application { public...