What is the difference between Combo box and radio button

Difference between Combo box and radio button in java:

• Combo box is editable. 
  Radio button is non editable.
• Combo box take less space on screen if multiple values are there.
  Radio button take more space on screen if multiple values are there.
• Combo box allows us to select from list.
  Radio button allows us to select from group.
• JComboBox jcbox = new JComboBox();    
  JRadioButton option1 = new JRadioButton("");
• For Combo box import package is, import javax.swing.JComboBox;
  For radio button import package is, import javax.swing.JRadioButton;