LABELS, BUTTONS, CHECKBOXES, TEXTFIELDS

Theory behind forming the LABELS, BUTTONS, CHECKBOXES, TEXTFIELD.
1) Labels
      A) label() - create an empty label.
        B) label(String) - create a label with the given string.
2) Buttons
      A) Button() - Create a button without any name.
        B) Button(String) - Create a button with the given desired name.
3) Checkboxes
      A) Checkbox() - Create a checkbox without any label.
        B) Checkbox(String) - Create a labeled checkbox.
4) Text Areas:
      A) TextArea() - Creates a blank textField.
        B) TextArea(rows,character) - Creates a text area of rows with certain numbers of character.