// Fig. 7.4: Point.java // Definition of class Point public class Point { protected int x, y; // coordinates of the Point // No-argument constructor public Point() { setPoint( 0, 0 ); } // Constructor public Point( int a, int b ) { setPoint( a, b ); } // Set x and y coordinates of Point public void setPoint( int a, int b ) { x = a; y = b; } // get x coordinate public int getX() { return x; } // get y coordinate public int getY() { return y; } // convert the point into a String representation public String toString() { return "[" + x + ", " + y + "]"; } }