### Question:
XYStepRenderer extends XYLineAndShapeRenderer implements XYItemRenderer, Cloneable, PublicCloneable, Serializable { @Override public int hashCode() { return HashUtils.hashCode(super.hashCode(), this.stepPoint); } XYStepRenderer();  XYStepRenderer(XYToolTipGenerator toolTipGenerator,
            XYURLGenerator urlGenerator); double getStepPoint(); void setStepPoint(double stepPoint); @Override void drawItem(Graphics2D g2, XYItemRendererState state, 
            Rectangle2D dataArea, PlotRenderingInfo info, XYPlot plot,
            ValueAxis domainAxis, ValueAxis rangeAxis, XYDataset dataset,
            int series, int item, CrosshairState crosshairState, int pass); @Override boolean equals(Object obj); @Override int hashCode(); @Override Object clone();  }### Answer:
@Test public void testHashcode() { XYStepRenderer r1 = new XYStepRenderer(); r1.setStepPoint(0.123); XYStepRenderer r2 = new XYStepRenderer(); r2.setStepPoint(0.123); assertEquals(r1, r2); int h1 = r1.hashCode(); int h2 = r2.hashCode(); assertEquals(h1, h2); }