Java 在循环中每次确定一个新点（带坐标），在起点停止

在main方法中，我首先希望使用readPoint方法读取起始点（该方法在点的x和y坐标中调用两次readCoordinate）

下一步，我想每次读一个新的点。我想保持循环直到再次输入起点

我该如何进行

package domain;

public class Point {

    private int x;
    private int y;

    public Point(int x, int y) {
        setX(x);
        setY(y);
    }

    private void setX(int x) {
        checkCoordinate(x);
        this.x = x;
    }

    private void setY(int y) {
        checkCoordinate(y);
        this.y = y;
    }

    public int getX() {
        return x;
    }

    public int getY() {
        return y;
    }

    private void checkCoordinate(int coordinate) {
        if (coordinate < 0)
            throw new IllegalArgumentException("The coordinate must be greater than or equal to 0");
    }

    public boolean compareWithPoint(Point point) {
        if (this.x == point.x && this.y == point.y)
            return true;
        else
            return false;
    }

    public double calculateDistanceToPoint(Point point) {
        int x1 = point.x;
        int y1 = point.y;
        int x2 = this.x;
        int y2 = this.y;

        double distance = Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2));
        return distance;
    }
}

---

在不考虑存储所有输入点的情况下，您可以按照以下方式执行操作：

Point startingPoint = application.readPoint("Enter first coordinate:","Enter second coordinate: ",input);
Point nextPoint = null;

while (nextPoint == null || !startingPoint.compareWithPoint(nextPoint)) {
  nextPoint = application.readPoint("Enter first coordinate:","Enter second coordinate: ",input);
  // TODO: Do something with nextPoint
}

此while循环将一直运行，直到

nextPoint

不再等于

null

（第一次迭代后应为true），并且方法

compareWithPoint

返回true

Point startingPoint = application.readPoint("Enter first coordinate:","Enter second coordinate: ",input);
Point nextPoint = null;

while (nextPoint == null || !startingPoint.compareWithPoint(nextPoint)) {
  nextPoint = application.readPoint("Enter first coordinate:","Enter second coordinate: ",input);
  // TODO: Do something with nextPoint
}