Is the following TRUE? Given the following quadrant method below: This method returns which quadrant of the x/y plane this Point object falls in?

Question

Given the following quadrant  method to the Point class:

public class Point {

private int x;

private int y;

public int quadrant(){

 if (x >0) return 1

 if (x<0) return 2;

 if (y>0) return 3;

 if (y<0) return 4;

}}

 

This method returns which quadrant of the x/y plane this Point object falls in. Quadrant 1 contains all points whose x and y values are both positive. Quadrant 2 contains all points with negative x but positive y. Quadrant 3 contains all points with negative x and y values. Quadrant 4 contains all points with positive x but negative y. If the point lies directly on the x and/or y axis, return 0.

Is this True?

Answer 1

class Point

{

public static final int ORIGIN = 0;

public static final int QUADRANT1 = 1;

public static final int QUADRANT2 = 2;

public static final int QUADRANT3 = 3;

public static final int QUADRANT4 = 4;

public static final int POSITIVE_X_AXIS = 360;

public static final int POSITIVE_Y_AXIS = 90;

public static final int NEGATIVE_X_AXIS = 180;

public static final int NEGATIVE_Y_AXIS = 270;

private int x;

private int y;

Point(int X, int Y) { this.x = X; this.y=Y; }

Point(Point p) { this.x = p.x; this.y=p.y; }

int getX() { return(x); }

int getY() { return(y); }

public int quadrant()

{

int iQuadrantReturn = -1;

if (x>0 && y>0)

{

iQuadrantReturn = QUADRANT1;

}

else if (x<0 && y>0)

{

iQuadrantReturn = QUADRANT2;

}

else if (x<0 && y<0)

{

iQuadrantReturn = QUADRANT3;

}

else if (x>0 && y<0)

{

iQuadrantReturn = QUADRANT4;

}

else if (x==0 && y>0)

{

iQuadrantReturn = POSITIVE_Y_AXIS;

}

else if (x==0 && y<0)

{

iQuadrantReturn = NEGATIVE_Y_AXIS;

}

else if (x>0 && y==0)

{

iQuadrantReturn = POSITIVE_X_AXIS;

}

else if (x<0 && y==0)

{

iQuadrantReturn = NEGATIVE_X_AXIS;

}

else if (x==0 && y==0)

{

iQuadrantReturn = ORIGIN;

}

return(iQuadrantReturn);

}

public static void main(String args[])

{

Point pA = new Point(3,4);

Point pB = new Point(-4,3);

Point pC = new Point(-3,-4);

Point pD = new Point(4,-3);

Point pE = new Point(5,0);

Point pF = new Point(0,5);

Point pG = new Point(-5,0);

Point pH = new Point(0,-5);

Point O = new Point(0,0);

System.out.println(pA.quadrant());

System.out.println(pB.quadrant());

System.out.println(pC.quadrant());

System.out.println(pD.quadrant());

System.out.println(pE.quadrant());

System.out.println(pF.quadrant());

System.out.println(pG.quadrant());

System.out.println(pH.quadrant());

System.out.println(O.quadrant());

}

}