public class A {
    private void drawEdge(Graphics g, float edgeWidth,
        int x1, int x2, int y1, int y2) {
        final Graphics2D g2d = (Graphics2D) g;
        g2d.setStroke(new BasicStroke(edgeWidth));
        g.drawLine(x1, y1, x2, y2);
    }
}

public class A {
    private void drawEdge(Edge edge, Graphics g) {
        final Graphics2D g2d = (Graphics2D) g;
        g2d.setStroke(new BasicStroke(edge.getEdgeWidth()));
        g.drawLine(edge.getX1(), edge.getY1(), edge.getX2(), edge.getY2());
    }
}
public class Edge {
    private final float edgeWidth;
    private final int x1;
    ...
    public Edge(float edgeWidth, int x1, int x2, int y1, int y2) {
        this.edgeWidth = edgeWidth;
        this.x1 = x1;
        ...
    }
    public float getEdgeWidth() {
        return edgeWidth;
    }
    public int getX1() {
        return x1;
    }
    ...
}