### Question:
BoxAndWhiskerToolTipGenerator extends StandardCategoryToolTipGenerator implements CategoryToolTipGenerator, Cloneable, PublicCloneable,
                   Serializable { @Override public boolean equals(Object obj) { if (obj == this) { return true; } if (obj instanceof BoxAndWhiskerToolTipGenerator) { return super.equals(obj); } return false; } BoxAndWhiskerToolTipGenerator();  BoxAndWhiskerToolTipGenerator(String format, 
            NumberFormat formatter); @Override boolean equals(Object obj); static final String DEFAULT_TOOL_TIP_FORMAT; }### Answer:
@Test public void testEquals() { BoxAndWhiskerToolTipGenerator g1 = new BoxAndWhiskerToolTipGenerator(); BoxAndWhiskerToolTipGenerator g2 = new BoxAndWhiskerToolTipGenerator(); assertEquals(g1, g2); assertEquals(g2, g1); g1 = new BoxAndWhiskerToolTipGenerator("{0} --> {1} {2}", new DecimalFormat("0.0")); g2 = new BoxAndWhiskerToolTipGenerator("{1} {2}", new DecimalFormat("0.0")); assertFalse(g1.equals(g2)); g2 = new BoxAndWhiskerToolTipGenerator("{0} --> {1} {2}", new DecimalFormat("0.0")); assertEquals(g1, g2); g1 = new BoxAndWhiskerToolTipGenerator("{0} --> {1} {2}", new DecimalFormat("0.0")); g2 = new BoxAndWhiskerToolTipGenerator("{0} --> {1} {2}", new DecimalFormat("0.00")); assertFalse(g1.equals(g2)); }