如何解决“无法解析方法"? [英] How do I fix "cannot resolve method"?
问题描述
所以首先我要上这个课:
So first I have this class:
public float getPixel(int height, int width)
{
return data[height][width];
}
public void setPixel(float value, int height, int width)
{
if (value > getMax())
value = getMax();
if (value < 0)
value = 0;
data[height][width] = value;
}
private Image(String magicNumber, int height, int width, float max) {
this.magicNumber = magicNumber;
this.width = width;
this.height = height;
this.max = max;
data = new float[height][width];
}
...
public Image clone()
{
Image clone = new Image(getMagicNumber(), getHeight(), getWidth(), getMax());
for (int i = 0; i < getHeight(); i++)
{
for (int j = 0; j < getWidth(); j++)
{
clone.setPixel(getPixel(i, j), i, j);
}
}
return clone;
}
然后是此类:
public class Filter {
public Filter() {
}
public Image linearFilter(Image image, float[][] kernel)
{
Image filtered = image.clone();
for (int i = 0; i < getHeight(); i++)
{ /* cannot resolve getHeight*/
...
}
return filtered;
}
}
我有两个问题:
1)为什么我不需要创建Image类的实例.在这里我已经可以使用filtered.setPixels ...
1) Why do I don't need to create an instance of the class Image. Here I can already use filtered.setPixels...
2)如何使用无法解决方法"解决问题?
2) How do I fix the Problem with "cannot resolve method"?
推荐答案
我真的无法从您的帖子中看出来,因为您发布的第一个代码段似乎不是一个完整的类,而是一部分.我假设您有一个Image类,并且该Image类有一个名为getHeight()
的方法.
I can't really tell from your post because the first snippet you've posted doesn't seem to be an entire class but rather a portion of it. I assume you have an Image class, and that Image class has a method called getHeight()
.
在for循环条件for (int i = 0; i < getHeight(); i++)
中,您很可能希望将getHeight()
更改为filtered.getHeight()
,因为getHeight()
是Image
类内部的方法,而filtered
是(大概)类型为Image
.
Inside the for loop condition for (int i = 0; i < getHeight(); i++)
, you'll most likely want to change getHeight()
to filtered.getHeight()
because getHeight()
is a method inside of the Image
class, and filtered
is (presumably) of type Image
.
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