point p=new point() 与p= new point() 的区别JAVA菜鸟,不耻下问啦!

point p=new point() 与p= new point() 的区别JAVA菜鸟,不耻下问啦! Point *pt=new Point[3] 如何初始化 请各位大神帮我看看这个指针到底哪里出错了?#include#includeusing namespace std;class point{public:point();point(int xx,int yy){x=xx;y=yy;}point();int getx(){return x;}private:int x,y;};int main(){point *p=new point;point a(2,3);p=&a point point point New Staring Point. java由三点求三角形的周长public class Point {int x;int y;Point(){ }Point(int a,int b){x=a;y=b;}}public class Triangle {Point n1,n2,n3;Triangle(Point n1,Point n2,Point n3){n1=new Point();n2=new Point();n3=new Point();}double x1=Math.pow(n1.x- Point::Point(Point & new start point 是新起点 java 如下写了Circle类 构造函数 在测试程序中 new一个circle在第9行 提示错误Circle类型不可用 怎样改?1 class Circle{2 Point o;3 double radius;4 Circle(Point p,double r){5 o = p;6 radius = r;7 }8 Point d1 = new Point(2.0,2. 谁能帮我详细解释一下这个用C#画图的代码是怎样画出来的?private void Form1_Paint(object sender,PaintEventArgs e){// 准备平行四边形Point[] sbx = new Point[]{new Point(100,50),new Point(400,50),new Point(350,200),new Point( c++ 求三角形周长和面积#include#include using namespace std;class Point{public:Point(double xx=0 ,double yy=0 ){x =xx;y=yy;}Point(Point&p);double getX(){return x ;}double getY(){return y;}private:double x,y;};Point::Point(Point&p){x=p.x;y=p.y point for point是什么意思 #include stdio.h void point(char *p) {p+=3;} main() { char b[4]={'a','b','c','d'},*p=b; point(p);为什么呢. 32.若有语句int *point,a=4;和point=&a;下面均代表地址的一组选项是（ ）A.a,point,*&a B.&*a ,&a ,*point C.*&point,*point,&a D.&a ,&*point ,point 9．若有语句int *point,a=4;和point=&a;下面均代表地址的一组选项是_____.A.a,point,*&a B.&*a,&a,*point C.*&point,*point,&a D.&a,&*point ,point char point(char*p) {p+=3;return *P} main() {char b[4]={'a','b','c','d'},*p=b; point(p);printf(c char point(char*p){p+=3;return *P}main(){char b[4]={'a','b','c','d'},*p=b;point(p);printf(c ,*p）；}求输出结果,