Mac: Can't read input file, when adding pictures to a JFrame

hey guys, title kinda says it all. i've tried changing the path 10000 times. idk if its wrong in the code. help please! thanks,

Java Code:

import java.awt.*;
import java.awt.event.*;

import javax.swing.*;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;

public class calculator extends JPanel{
        String addPath = "/Users/swedishfished/Desktop/eclipse/calcuLater\\!/src/add.png";
        String subtractPath = "/Users/swedishfished/Desktop/eclipse/calcuLater\\!/src/subtract.png";
        String multiplyPath = "/Users/swedishfished/Desktop/eclipse/calcuLater\\!/src/multiply.png";
        String dividePath = "/Users/swedishfished/Desktop/eclipse/calcuLater\\!/src/divide.png";
        
        
        private JFrame frame;
        calculator() throws IOException{
                frame = new JFrame("wassup");
                frame.setSize(500,500);
                frame.add(this);
                frame.setVisible(true);
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);           
                File add = new File(addPath);
                File subtract = new File(subtractPath);
                File multiply = new File(multiplyPath);
                File divide = new File(dividePath);
                
        BufferedImage a = ImageIO.read(add);
        BufferedImage s = ImageIO.read(subtract);
        BufferedImage m = ImageIO.read(multiply);
        BufferedImage d = ImageIO.read(divide);
        JLabel aLabel = new JLabel(new ImageIcon(a));
        JLabel sLabel = new JLabel(new ImageIcon(s));
        JLabel mLabel = new JLabel(new ImageIcon(m));
        JLabel dLabel = new JLabel(new ImageIcon(d));
        frame.add(aLabel);
   //     aLabel.setLocation(200,200);
        
        frame.add(mLabel);
    //    mLabel.setLocation(600,200);

        frame.add(sLabel);
    //    sLabel.setLocation(200,600);

        frame.add(dLabel);
      //  dLabel.setLocation(600,600);

        
        }
        
        
}