问题描述:
大大们写一下,注释啊,求
class Point {
double x,y,z;
Point(double _x,double _y,double _z) {
x = _x;
y = _y;
z = _z;
}
void setX(double _x) {
x = _x;
}
double getDistance(Point p) {
return (x - p.x)*(x - p.x) + (y - p.y)*(y - p.y) + (z - p.z)*(z - p.z);
}
}
public class TestPoint {
public static void main(String[] args) {
Point p = new Point(1.0,2.0,3.0);
Point p1 = new Point(0.0,0.0,0.0);
System.out.println(p.getDistance(p1));
p.setX(5.0);
System.out.println(p.getDistance(new Point(1.0,1.0,1.0)));
}
}
class Point {
double x,y,z;
Point(double _x,double _y,double _z) {
x = _x;
y = _y;
z = _z;
}
void setX(double _x) {
x = _x;
}
double getDistance(Point p) {
return (x - p.x)*(x - p.x) + (y - p.y)*(y - p.y) + (z - p.z)*(z - p.z);
}
}
public class TestPoint {
public static void main(String[] args) {
Point p = new Point(1.0,2.0,3.0);
Point p1 = new Point(0.0,0.0,0.0);
System.out.println(p.getDistance(p1));
p.setX(5.0);
System.out.println(p.getDistance(new Point(1.0,1.0,1.0)));
}
}
问题解答:
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