### Question:
SymbolicXYItemLabelGenerator implements XYItemLabelGenerator,
        XYToolTipGenerator, Cloneable, PublicCloneable, Serializable { @Override public int hashCode() { int result = 127; return result; }  @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 testHashCode() { SymbolicXYItemLabelGenerator g1 = new SymbolicXYItemLabelGenerator(); SymbolicXYItemLabelGenerator g2 = new SymbolicXYItemLabelGenerator(); assertEquals(g1, g2); assertSame(g1.hashCode(), g2.hashCode()); }