Load an Icon from a jar : ImageIcon « 2D Graphics « Java Tutorial

1. Java Tutorial
2. 2D Graphics
3. ImageIcon

import javax.swing.Icon;
import javax.swing.UIManager;

public class Main {
  public static void main(String[] argv) throws Exception {
  }

  public static Icon getIconForType(int iconType) {
    switch (iconType) {
    case 0:
      return UIManager.getIcon("OptionPane.errorIcon");
    case 1:
      return UIManager.getIcon("OptionPane.informationIcon");
    case 2:
      return UIManager.getIcon("OptionPane.warningIcon");
    case 3:
      return UIManager.getIcon("OptionPane.questionIcon");
    }
    return null;
  }
}