[help] object movement

can any one tell me how to make just a plain square move i know

if (Key.isDown( ))

but what code do u add to make it move??

just a stupid Q

-super simple

Code:

---

if (Key.isDown(Key.RIGHT)) {
        _x += 1;
}

---

-harder;

Code:

---

if (Key.isDown(Key.RIGHT)) {
        x += 1;
} else {
        x *= .8;
}
_x += x;

---

ya i know its really simple but i just wanted to be sure i was right!!

thanks anyways!!