JavaFX Creating an Image and ImageView

Stuck in the basics. I have some syntax issues setting up the Image Path. When i try to create an Image and give it the image path, it always throws some some exception about the path. I have commented out some of the path combination I have already tryed. Can you please tell me what I am doing wrong? Thank you.

package jopofx;

public JoPoCTRL(JoPoFX gui){
    this.gui = gui;  
}

public void updateImages(){
    Image img = null;
    try{
        //img = new Image("C:\\Users\\ ... //FullPath ... \\JoPoFX\\src\\jopofx\\myimage.png");
        img = new Image("\\JoPoFX\\src\\jopofx\\myimage.png");
        //img = new Image("\\src\\jopofx\\myimage.png");
        //img = new Image("\\myimage.png");

    }catch(Exception e){
        System.out.println("error while creating image");
        e.printStackTrace();
    }

    try{
        gui.setImgV(img);
    }catch(Exception e){
        System.out.println("error while setting up the image");
    }        
}

This is what prints out: error while creating image java.lang.IllegalArgumentException: Invalid URL: Invalid URL or resource not found at javafx.scene.image.Image.validateUrl(Image.java:990) at javafx.scene.image.Image.(Image.java:538)