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> import java.awt.geom.Line2D;
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> 
> 	/**
> 	 * compute distance of point from line segment.<br>
> 	 * Uses AWT Line2D utility methods
> 	 */
> 	public static double distanceFromLine2D(int xa, int ya,
> 										int xb, int yb,
> 										int xc, int yc) {
> 		Line2D.Double line = new Line2D.Double(xa, xb, ya, yb);
> 		return line.ptSegDist(xc, yc);
> 	}