A "Button" is a user interface component.  Here are some useful things to do with buttons:

1.   Declare a button:   Button myButton;
   
2.   Allocate a button:  myButton = new Button();
                                   myButton = new Button("label");
   
3.   Resize a button:     myButton.setSize(int width, int height);
        *** only do this with the null layout manager
   
4.   Move a button:       myButton.setLocation(int topLeftX, int topLeftY);
        *** only do this with the null layout manager
   
5. Move and resize a button:    
              myButton.setBounds(int topLeftX, int topLeftY, int width, int height);
   
6.   Handle button events: 
        To handle events, do three things.  First, implement "ActionListener".  Second, "add" a "Button" to the display.  Third, define "actionPerformed".

Would you like to see a sample program that uses buttons?