翻译坐标法
我似乎无法正确使用转换方法。有什么建议可以让我的方法更好地翻译这一点吗?i、 当调用此方法时,它应该能够给出新的点。另外,我在创建坡度方法时遇到问题。。。我知道斜率是y2-y1/x2-x1,但我如何将其转化为一种方法。有数学课我可以为斜坡导入吗?谢谢,非常感谢
import java.util.*;
public class Point {
private int x; // to store variables for x & y
private int y;
private double slope;
//default constructor
public Point () {
double x = 0;
double y = 0;
}
//alternate constructor
public Point (double x1, double y1) {
double x = x1;
double y = y1;
}
//set coordinates
public void setCoord (double x1, double y1){
double x = x1;
double y = y1;
}
//print method
public void print () {
System.out.print(x + "," + y);
}
//toString Method
public String toString() {
return "(" + x + "," + y + ")";
}
public int getX() {
return x;
}
public int getY() {
return y;
}
public void equals () {
if (x==y)
System.out.println(" Coordinates are the same ");
else {
System.out.println(" Coordinates are different ");
}
}
public void copy(Point temp) {
x=temp.x;
y=temp.y;
}
public Point getCopy() {
Point temp = new Point();
temp.x = x;
temp.y = y;
return temp;
}
public void distanceFromOrigin(int x1, int y1) {
double dx = x-x1;
double dy = y-y1;
}
//calculate the distance from one point to another
public void distance (double x1, double y1) {
double distance = Math.sqrt((x * x1) + (y * y1));
}
//shift the location of a point by a given amount
public void transform (double dx, double dy) {
double transform = ((x+dx) (y+dy));
}
// returns true if any given point lines up horizontally with a given point.
public boolean isHorizontal () {
return true;
}
// returns true if any given point lines up vertically with a given point.
public boolean isVertical () {
return true;
}
// returns the slope of the line
public double slope() {
return slope;
}
}
# 1 楼答案