Computer extending calculator and overriding the calculate

class CalculatingDevice {

private String name;

double sum = x + y;

return name + ": " + sum;

System.out.println(result);

}

super(name);

}

return superResult + ", " + subtractResult;

}

}

@Override

return superResult + ", " + multiplyResult + ", " + divideResult;

}

new Computer("Cray"),

new CalculatingDevice("Abacus"),

}