java编程 定义一个类Point，代表一个点，public属性有x和y，方法有显示点坐标 show（），构造函数有两
1. 定义一个类Point，代表一个点，public属性有x和y，方法有显示点坐标show（），构造函数有两个参数分别给x,y赋值，在main方法中构造两个对象，再创建一方法(getMiddle)为取两个点构成线段的中点的坐标，参数为2个点对象，调用此方法后得到一个新的点，编写Application，显示该对象的坐标值。
文件MyPoint.java
public class MyPoint{public double x,y;
public MyPoint(){
x = 0.0;
y = 0.0;
}
public MyPoint(double x,double y){
this.x = x;
this.y = y;
}
public void show(){
System.out.println("("+x+","+y+")");
}
public static MyPoint getMiddle(MyPoint p1,MyPoint p2){
MyPoint p = new MyPoint((p1.x+p2.x)/2,(p1.y+p2.y)/2);
return p;
}
}
文件Test.java
public class Test{public static void main(String[] args){
MyPoint p1 = new MyPoint();
MyPoint p2 = new MyPoint(6.0,8.0);
MyPoint p = MyPoint.getMiddle(p1,p2);
System.out.print("点1：");
p1.show();
System.out.print("点2：");
p2.show();
System.out.print("中点：");
p.show();
}
}
望采纳~
public double x;
public double y;
Point(double x, double y) {
this.x=x;
this.y=y;
}
static Point getMiddle(Point point1,Point point2){
double px=(point1.x+point2.x)/2;
double py=(point1.y+point2.y)/2;
Point p=new Point(px,py);
return p;
}
void show(){
System.out.println("点的坐标：("+x+","+y+")");
}
public static void main(String[] args) {
Point point1=new Point(0,0);
point1.show();
Point point2=new Point(4,9);
point2.show();
Point p=getMiddle(point1,point2);
p.show();
}
}
java编程 定义一个类Point,代表一个点,public属性有x和y,方法有显示点...
文件MyPoint.java public class MyPoint{ public double x,y; public MyPoint(){ x = 0.0; y = 0.0; } public MyPoint(double x,double y){ this.x = x; this.y = y; } public void show(){ System.out.println("("+x+","+y+")"); ...
java编写一个表示坐标点的类(Point),其中包含x和y两个坐标点的值,并且...
public class Point{ private int x; private int y; public getX(){ return x; } public getY(){ return y; } public setX(int x){ this.x = x; } public setY(int y){ this.y = y; } public Point(int x, int y){ this.x = x; this.y = y...
定义一个点类Point,有横坐标x和纵坐标y,定义构造函数初始化点,定义displ...
classPoint｛public：Point（inta，intb）：x（a），y（b）｛cout～Point（）｛coutvoidshow（）｛coutdoubledistance （Pointp）｛returnsqrt（（p．y－y）＊（p．x－y）＋（p．x－x）＊（p．x－x））；｝private：intx；inty；｝；intmain（）｛Pointa（0，0）；Pointb（1，1）；coutretu...
Java定义一个Point(点)类
public static void main(String[] args){ Point p1=new Point();Point p2=new Point(1,2);p1.show();p1.move(3,4);p1.show();p2.show();p2.move(5,6);p2.show();} Point(){ this(0,0);} Point(float x,float y){ this.x=x;this.y=y;} void move(float x,float ...
Java面向对象程序设计 习题 设计一个名为MyPoint的类表示一个点(x...
\\n" + ex 也就是第二个参数是消息框弹出消息的内容。"BinaryRain 也就是第三个参数是消息框的标题。JOptionPane.ERROR_MESSAGE 也就是第四个参数，是消息框的类型，表示错误提示，弹出来的消息框有个红色的叉叉标识，如JOptionPane.WARNING_MESSAGE，表示警告提示，弹出来的消息框有个叹号标识。
一个Point(点)类,该类具有x,y(表示点的横、纵坐标)两个属性,并定义两个...
} public void show(){ System.out.println("("+x+","+y+")");} } 测试该类的如下代码 public class test { \/ param args \/ public static void main(String[] args) { Point point1 =new Point();point1.show();Point point2 =new Point(2,3);point2.show();} } 应该是这样...
定义一个坐标类Pointer,成员变量包括x和y;成员方法有: (1)构造方法...
private double y;public Pointer(){ } public Pointer(double x, double y){ this.x =x ;this.y = y;} public double getX() { return x;} public void setX(double x) { this.x = x;} public double getY() { return y;} public void setY(double y) { this.y = y;} publi...
java创建一个Point类,包含坐标x、y。然后创建一个MyPoint类,定义两个...
class Point{ int x, y;} class MyPoint{ Point start, end;public MyPoint(Point start, Point end){ this.start=start;this.end=end;} double calc(){ return start.x-end.x+start.y-end;\/\/其实使用三角函数计算。。。http:\/\/zhidao.baidu.com\/question\/918415034931906699 } } ...
定义一个Point类,其属性包括点的坐标,提供计算两点之间的距离_百度知 ...
{double x,y;friend class Rectangle;public:Point(){x=y=0;} Point(double a,double b){x=a;y=b;} double distance(Point& p1,Point& p2){return sqrt((p1.x-p2.x)*(p1.x-p2.x)+(p1.y-p2.y)*(p1.y-p2.y));double distance(Point& p){return sqrt((x-p.x)*(x-...
java编程题,写一个point类,计算两个point实例间的距离
Point类Point.java public class Point { public Point(){} public Point(double x, double y) { super();this.x = x;this.y = y;} public double getX() { return x;} public void setX(double x) { this.x = x;} public double getY() { return y;} public void setY(double ...
