Help With Saving

public void save (String fileName){
    ChangeJar saveJar = new ChangeJar();

    // Saves the values of the current "ChangeJar" to "saveJar"
    saveJar.quarters = quarters;
    saveJar.dimes = dimes;
    saveJar.nickels = nickels;
    saveJar.pennies = pennies;

    try {
        FileOutputStream fileOut = new FileOutputStream("/tmp/" + fileName + ".cjr");
        ObjectOutputStream out = new ObjectOutputStream(fileOut);
        out.writeObject(saveJar);
        out.close();
        fileOut.close();
        System.out.printf("Saved ChangeJar is saved in /tmp/" + fileName + ".cjr");
    }catch(IOException i) {
        i.printStackTrace();
    }
}

public void load (String fileName){
    try {
        FileInputStream fileIn = new FileInputStream("/tmp/" + fileName + ".cjr");
        ObjectInputStream in = new ObjectInputStream(fileIn);
        ChangeJar loadJar = (ChangeJar) in.readObject();
        in.close();
        fileIn.close();
    }catch(IOException i) {
        i.printStackTrace();
        return;
    }catch(ClassNotFoundException c) {
        System.out.println("ChangeJar class not found");
        c.printStackTrace();
        return;
    }
}