### Question:
SymbolicXYItemLabelGenerator implements XYItemLabelGenerator,
        XYToolTipGenerator, Cloneable, PublicCloneable, Serializable { @Override public boolean equals(Object obj) { if (obj == this) { return true; } if (obj instanceof SymbolicXYItemLabelGenerator) { return true; } return false; }  @Override String generateToolTip(XYDataset data, int series, int item); @Override String generateLabel(XYDataset dataset, int series, int category); @Override Object clone(); @Override boolean equals(Object obj); @Override int hashCode();  }### Answer:
@Test public void testEquals() { SymbolicXYItemLabelGenerator g1 = new SymbolicXYItemLabelGenerator(); SymbolicXYItemLabelGenerator g2 = new SymbolicXYItemLabelGenerator(); assertEquals(g1, g2); assertEquals(g2, g1); }