Method that reads from keyboard(1 value parameter) or from a file(0 value parameter) doesn't work properly at 0 parameter

Cleon :

I want my method to read triangles from keyboard or from file and then be added to ArrayList.. I have 2 classes: Point defined by 2 coordinates:int c1,int c2, and Triangle class defined by a color string and 3 points. I have 2 methods, one in Triangle class and one in Point class:

Triangle class method:

public Triangle readingTriangle(int value) throws Exception {
        if(value == 1) {
        Scanner sc = new Scanner(System.in);
        Triangle reserve =new Triangle();
        reserve.color = sc.next();
        reserve.setA(reserve.A.readingPoint(1));
        reserve.setB(reserve.B.readingPoint(1));
        reserve.setC(reserve.C.readingPoint(1));
        return reserve;
        }
        if(value == 0) {
            Scanner input = new Scanner(new File("File"));
            Triangle reserve1 =new Triangle();

            reserve1.color=input.next();
            reserve1.setA(reserve1.A.readingPoint(0));
            reserve1.setB(reserve1.B.readingPoint(0));
            reserve1.setC(reserve1.C.readingPoint(0));
            return reserve1;
        }
        return new Triangle();


    }

Point class method:

public Point readingPoint(int value) throws Exception {
        if(value==1) {
        Scanner sc = new Scanner(System.in);
        Point reserve=new Point();
        reserve.c1 = sc.nextInt();
        reserve.c2 = sc.nextInt();
        return reserve;
        }
        if(value==0) {
            Point reserve1=new Point();
            Scanner input1 = new Scanner(new File("File"));

            input1.next();
            reserve1.c1=input1.nextInt();
            reserve1.c2=input1.nextInt();


            return reserve1;

        }
        return new Point();

    }

In test class:

    Scanner sc = new Scanner(System.in);
    int triangleNumber = sc.nextInt();
    List<Triangle> triangleList = new ArrayList<Triangle>();

    for (int i = 0; i < triangleNumber; i++) {
        Triangle t = new Triangle();
        Triangle t1 = t.readingTriangle(0);
        triangleList.add(t1);

    }
    System.out.println(triangleList);

My output:

[Triangle [color=green, A=Point [c1=20, c2=20], B=Point [c1=20, c2=20], C=Point [c1=20, c2=20]]]

My File:

green
20 20
40 40
60 60

First, I want to mention that first piece of method is working (1 value parameter is working), I have problems with reading from file. You can see the problem from output:"20 20" is given for B and C points.

I have some things that I try to respect:

I want my structures of methods to be, if possible, respected;
Using Scanner is mandatory(I know it's old technique);
I don't want to change my file, because if it was a real notepad, I don't think I will stay to change things in notepad.

Other observations:

I think the problem is at scanner methods, I tried with while(input1.hasNext()).

Bashir :

you have to use the same instance of Scanner. here you are creating a new instance in each iteration in the loop, so each time it will start from the beginning of the file. So I suggest to create a single instance in main class and pass it as parameter in your methods.

Triangle class method:

public Triangle readingTriangle(int value, Scanner sc,Scanner input) throws Exception {
    if(value == 1) {
    Triangle reserve =new Triangle();
    reserve.color = sc.next();
    reserve.setA(reserve.A.readingPoint(1,sc,input));
    reserve.setB(reserve.B.readingPoint(1,sc,input));
    reserve.setC(reserve.C.readingPoint(1,sc,input));
    return reserve;
    }
    if(value == 0) {
        Triangle reserve1 =new Triangle();

        reserve1.color=input.next();
        reserve1.setA(reserve1.A.readingPoint(0,sc,input));
        reserve1.setB(reserve1.B.readingPoint(0,sc,input));
        reserve1.setC(reserve1.C.readingPoint(0,sc,input));
        return reserve1;
    }
    return new Triangle();


}

Point class method:

public Point readingPoint(int value, Scanner sc,Scanner input) throws Exception {
    if(value==1) {
    Point reserve=new Point();
    reserve.c1 = sc.nextInt();
    reserve.c2 = sc.nextInt();
    return reserve;
    }
    if(value==0) {
        Point reserve1=new Point();
        reserve1.c1=input.nextInt();
        reserve1.c2=input.nextInt();


        return reserve1;

    }
    return new Point();

}

In test class:

Scanner sc = new Scanner(System.in); //the only time you create new instance of Scanner(System.in) -> for keybord input
Scanner input = new Scanner(new File("File"));//the only time you create new instance of Scanner(new File("File")) -> for file input

int triangleNumber = sc.nextInt();
List<Triangle> triangleList = new ArrayList<Triangle>();
for (int i = 0; i < triangleNumber; i++) {
    Triangle t = new Triangle();
    Triangle t1 = t.readingTriangle(0,sc,input);
    triangleList.add(t1);

}
System.out.println(triangleList);