class Point {
double x,y,z;
Point(double x1,double y1,double z1) {
x= x1;
y= y1;
z= z1;
}
void setX (double x1) {
x=x1;
}
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 Test {
public static void main (String[] args){
Point p=new Point(1.0 , 2.0 , 3.0) ;
Point p1=new Point (2.0 , 3.0 , 4.1);
System.out.println(p.getDistance(p1));
}
}看马士兵老师的视频的时候有段这个代码 打出来但是总是错误
Exception in thread "main" java.lang.NoSuchMethodError: Point.<init>(DDD)V
at Test.main(Test.java:20)
求助各位大牛
double x,y,z;
Point(double x1,double y1,double z1) {
x= x1;
y= y1;
z= z1;
}
void setX (double x1) {
x=x1;
}
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 Test {
public static void main (String[] args){
Point p=new Point(1.0 , 2.0 , 3.0) ;
Point p1=new Point (2.0 , 3.0 , 4.1);
System.out.println(p.getDistance(p1));
}
}看马士兵老师的视频的时候有段这个代码 打出来但是总是错误
Exception in thread "main" java.lang.NoSuchMethodError: Point.<init>(DDD)V
at Test.main(Test.java:20)
求助各位大牛
System.out.println(p.getDistance(p1));
这个吗?如果是这个应该是你
double getDistance (Point p) {
return (x-p.x)*(x-p.x)+(y-p.y)*(y-p.y)+(z-p.z)*(z-p.z);
}
这里写错了,
你直接return 0.0d;试试呢?
怀疑你的类没有编译过
用过javac Test.java
编译成功了吗?
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)));
}
}马士兵源代码,看不出你哪里错了。