我正在尝试在我的JFrame. 我的项目文件夹中有图标图像，但我似乎无法让它工作。
我也尝试过setIconImage(new ImageIcon(imgURL).getImage());，但它似乎也不适合我。
此外，自定义图标的典型尺寸是多少
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
/**
* @author Curtis
*/
public class Favorites extends JFrame implements ActionListener
{
String[] styles = {"Big Band", "Country", "Pop", "Rock", "Rap"};
Font boxFont = new Font("Times New Roman", Font.BOLD, 14);
JLabel instruct = new JLabel("What is your favorite type of music?");
JComboBox music = new JComboBox(styles);
JTextField result = new JTextField(20);
final int WIDTH = 270;
final int HEIGHT = 125;
public Favorites()
{
super("Favorite Music");
setSize(WIDTH, HEIGHT);
setLayout(new FlowLayout());
instruct.setFont(boxFont);
JFrame.setDefaultLookAndFeelDecorated(true);
add(instruct);
add(music);
add(result);
setVisible(true);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
music.addActionListener(this);
Image icon = Toolkit.getDefaultToolkit().getImage("icnnote.jpg");
setIconImage(icon);
}
@Override
public void actionPerformed(ActionEvent e)
{
throw new UnsupportedOperationException("Not supported yet.");
}
}