1. Write java code to make a GUI. It will contain a textfield and a button. when the button is clicked it should display the text from textfield on GUI. the text will be displayed using JOptionPane.showMessageDialog() method.
2. Write java code and Make two classes Course and Test class. In course class, define two variables : courseID and courseTitle. and a parameterized constructor to initialize variables. course class will also have a display method which will display its initialized variables. The test class will contain main method. In main method, create a new object of course class and call its display method.
3. Identify errors in the following code, also give reasons
Animals() is an abstract class.
Living() is an abstract method.
Birds() is a derived/subclass.
public class Behaviour{
public static void main(String[] args)
{
Animals a=null;
Animals al=new Animals();
a=new Birds();
a.living();
}
}
4. Write code to override paintcomponent() method and draw unfilled equilateral triangle and orange oval over it.
5. If you have ResultSet rs object. Then write code to get the maximum column width of the 2nd column.