I need to create a n-dimensional point with coordinates. The Constructor should take any number of coordinates. [closed]

Question 1

You can have an array as an argument for your constructor

public class MultiDemPoint{
    public MultiDemPoint(double[] coords){

    }
}

You will need to pass an array of doubles:

new MultiDemPoint(new double[]{4, 5.0, 3, 2, 6, 4.6});

You can also expect undefined number of coordinates as separated values

public class MultiDemPoint{
    public MultiDemPoint(double... coords){

    }
}

You can pass parametrs like new MultiDemPoint(4, 5.0, 3, 2, 6, 4.6); in this case.

Practice:

Create a new empty project in your IDE

Create MultDemPoint.java file with following code:

public class MultiDemPoint{
    private double[] coords;
    //double... coords will automatically convert all supplied coordinates to the array,
    // we can store it in double[] coords.
    public MultiDemPoint(double... coords){
        this.coords = coords;
    }

    public void printCoords(){
        for(int i=0; i<coords.length; i++){
            System.out.println("Coordinate #"+i+": "+coords[i]);
        }
        System.out.println("");
    }
}

Use this code for your Main.java

public class Main {
        public static void main(String[] args){
        MultiDemPoint point1 = new MultiDemPoint(1,2,3,4);
        MultiDemPoint point2 = new MultiDemPoint(3);
        MultiDemPoint point3 = new MultiDemPoint(5.44444444,232323.12323,321321);
        System.out.println("Point1 coordinates:");
        point1.printCoords();

        System.out.println("Point2 coordinates:");
        point2.printCoords();

        System.out.println("Point3 coordinates:");
        point3.printCoords();

    }
}

Question 2

If you don't want to pass an array, you can use so called "varargs".

public class Point
{
 public Point(double... x)
 {
 }
}

Then you can call:

new Point(1, 2, 3);
new Point(1, 2, 3, 4);