When the player hits the food make it disapear

I am new to programing, so bare with me lol. Our teacher has given us a game in which we need to add some elements to it. It's a game where we have a player, some enemies and some food made out of rectangles. If the player hits the food i want the food to spawn somewhere else in the window. Heres is the code where im trying to make it happen:

 private void updateFood(){
for(int i = 0; i < food.length; ++i)
{
//Should we follow or move randomly?
//2 out of 3 we will follow..
if(rnd.nextInt(3) < 2)
{
//We follow
int dx = player.getX() - food[i].getX();
int dy = player.getY() - food[i].getY();
if(abs(dx) > abs(dy))
{
if(dx > 0)
{
//Player is to the right - opiste
food[i].moveLeft();
}
else
{
//Player is to the left - opiste
food[i].moveRight();
}
}
else if(dy > 0)
{
//Player is down; - opiste
food[i].moveUp();
}
else
{//Player is up; - opiste
food[i].moveDown();
}
}
else
{
//We move randomly
int move = rnd.nextInt(4);
if(move == 0)
{
//Move right
food[i].moveRight();
}
else if(move == 1)
{
//Move left
food[i].moveLeft();
}
else if(move == 2)
{
//Move up
food[i].moveUp();
}
else if(move == 3)
{
//Move down
food[i].moveDown();
}
}
if(food[i].getX() == player.getX() && food[i].getY() == player.getY()){
food[i].getX() = random(0,width);
food[i].getY() = random(0,height);
}
}
}

the last 10 lines (or so) is where im having the problem.

    if(food[i].getX() == player.getX() && food[i].getY() == player.getY()){
food[i].getX() = random(0,width);
food[i].getY() = random(0,height);
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# 答案1
**得分**: 2
由于对于你的 `food[index]` 对象的方法了解有限，我猜测 `.getX()` 是只读的，意味着你不能给它设置一个值。要么找一个 `.setX(number)` 方法，要么使用现有的 `.moveLeft/Right/Up/Down(number)` 方法配合一些数学运算。
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<summary>英文:</summary>
With limited info on what methods your `food[index]` objects have, I&#39;m going to guess `.getX()` is read-only, meaning you can&#39;t set a value to it. Either find a `.setX(number)` method, or use the existing `.moveLeft/Right/Up/Down(number)` with a bit of maths.
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