import javax.swing.*;

public class JImageIconTest4 extends JFrame{

  public static void main(String[] args){
    JImageIconTest4 frame = new JImageIconTest4();

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setBounds(10, 10, 300, 200);
    frame.setTitle("ƒ^ƒCƒgƒ‹");
    frame.setVisible(true);

    ImageIcon icon = new ImageIcon("./hasami.png");
    frame.setIconImage(icon.getImage());
  }