List of usage examples for org.jfree.data.xy XIntervalSeries clear
public void clear()
From source file:org.jfree.data.xy.XIntervalSeriesTest.java
/** * Some checks for the clear() method.//from www. java2 s .c om */ @Test public void testClear() { XIntervalSeries s1 = new XIntervalSeries("S1"); s1.addChangeListener(this); s1.clear(); assertNull(this.lastEvent); assertTrue(s1.isEmpty()); s1.add(1.0, 2.0, 3.0, 4.0); assertFalse(s1.isEmpty()); s1.clear(); assertNotNull(this.lastEvent); assertTrue(s1.isEmpty()); }