import gnu.java.awt.peer.swing.SwingCheckboxPeer; //导入依赖的package包/类
protected CheckboxPeer createCheckbox(Checkbox target)
{
  checkHeadLess("No CheckboxPeer can be created in an headless graphics " +
                "environment.");

  return new SwingCheckboxPeer(target);
}
 

import gnu.java.awt.peer.swing.SwingCheckboxPeer; //导入依赖的package包/类
protected CheckboxPeer createCheckbox(Checkbox target)
{
  checkHeadLess("No CheckboxPeer can be created in an headless graphics " +
                "environment.");
  
  return new SwingCheckboxPeer(target);
}