Move method in php ??

[Hale88]

Inheritance and Polymorphism help

what is move method in CLASS?

I tried to search in google but no luck:

"Create a move method in the Shape class that accepts two values. These values are added to x and y attributes to simulate moving the shape."

this is the code I got so far (please fix me if something is wrong with this code):

class shape {
private $name;
private $x;
private $y;

function __construct($x , $y) {
$this->X = $x;
$this->y = $y;
}
public function setName($name) {
$this-> name = $name ;
}
public function getName() {
return $this-> name ;
}
public function setX($x) {
$this-> x = $x ;
}

public function getX(){
return $this-> x ;
}
public function setY($y){
$this-> Y = $y;
}
public function getY(){
return $this-> Y ;
}

thanks
hale

 

[Hale88]

here are some update. I have to create a Shape.php, Circle.php, and Square.php and yes I did, here is the code: However, I cannot get them run for some reason ( I still need MOVE METHOD)

Testing code:

require_once('Shape.php');
require_once('Circle.php');
require_once('Square.php');

$myCircle = new Circle("aCircle", 2, 3, 5);
$mySquare = new Square("aSquare", 0, 0, 4);

echo $mySquare->getName();
echo "<br />";
echo "Area of square is ";
echo $mySquare->area();
echo "<br />";

$mySquare-> move(23, 45);
echo "Position of square is x = ";
echo $mySquare->getX();
echo " y = ";
echo $mySquare->getY();
$mySquare->setSide(6);
echo "<br />";
echo "Area of square is ";
echo $mySquare->area();
echo "<br />";
echo $myCircle->getName();
echo "<br />";
echo "Area of circle is ";
echo $myCircle->area();
echo "<br />";
$myCircle->move(15, 20);
echo "Position of circle is x = ";
echo $myCircle->getX();
echo " y = ";
echo $myCircle->getY();
$myCircle->setRadius(-2);
echo "<br />";
echo "Area of circle is ";
echo $myCircle->area();

Shape:
class Shape {
private $name;
private $X;
private $Y;

function move ($X,$Y) {
return $this->X;
return $this->Y;
}

function __construct($x,$y) {
$this->X = $x;
$this->Y = $y;
}
public function setName($name) {
$this-> name = $name ;
}
public function getName() {
return $this-> name ;
}

public function setX($X) {
$this-> name = $X ;
}
public function getX() {
return $this-> X ;
}

public function setY($Y) {
$this-> name = $Y;
}
public function getY() {
return $this-> Y ;
}

}

Circle:
require_once ('Shape.php');
class Circle extends Shape {

private $radius;


function __construct($name,$x,$y,$radius) {
Shape::__construct($name,$x,$y);
$this->radius = $radius;


}
public function setradius($radius) {
if(is_numeric($radius) && $radius > 0 ) {
$this->radius = $radius;
}
if(is_numeric($radius) && $radius < 0 ) {
$this->radius = 0;
}
}
public function getradius($radius) {
return $this-> radius ;
}

function getarea() {
return 3.14159 * $this-> radius * $this-> radius;
}


}
$myCircle = new Circle("aCircle", 2, 3, 5);
echo $myCircle->getradius();
echo "<br />";
echo $myCircle->getName();
?>

Square:

require_once ('Shape.php');
class Square extends Shape {

private $side;


function __construct($name,$x,$y,$side) {
Shape::__construct($name,$x,$y);
$this->side = $side;


}
public function setSide($side) {
if(is_numeric($side) && $side > 0 ) {
$this->side = $side;
}
if(is_numeric($side) && $side < 0 ) {
$this->side = 0;
}
}
public function getSide($side) {
return $this-> side ;
}

function getarea() {
return $this-> side * $this-> side;
}

}
$mySquare = new Square("aSquare", 0, 0, 4);
echo $mySquare->getSide();
echo "<br />";
echo $mySquare->getName();

 

[Disparia]

Sounds like they just want you to create a method that modifies the x and y.

public function move(x, y) {
	$this->X += x;
	$this->Y += y;
}

Your move method is just returning values, so nothing is changed.

 

[Hale88]

Actually, When I change the X and Y the Area will also change and so the position. However, I cannot get them to run for some reason.

thanks for help
hale

 

[Disparia]

True, it doesn't get that far because your Square class doesn't have an area method ("echo $mySquare->area();"), it has a getarea method.

 

[Hale88]

OK I change it back to $mySquare->area() but still not working. This is the problem

"Fatal error: Non-abstract method Shape::move() must contain body in C:\xampp\htdocs\Final\Shape.php on line ##"

thanks
P/S: How can you put all three files together so you can you the TEST code to test them?

 

[Disparia]

Create/edit a file with all the classes, removing any require or include functions. Will probably make things easier to troubleshoot.

Have you changed the code much from what you posted earlier?

 

[Hale88]

they ask me to create 3 separate file call: Shape.php, Circle.php, Square.php. They given me the Test File call index.php and tell me to using the test code to calculate the Circle and Square. I will send them via PM to you. Please help me check if I made any mistake. But I dont think I do.

thanks

 

[Disparia]

Oh... I see now.

Will check them out.