'instanceof'에 해당되는 글 1건

  1. 2010.07.14 instanceof

instanceof

public class SimpleTest {

	@Test
	public void testInstanceOf(){

		Object o = new Child();
		
		assertTrue(o instanceof Object);
		assertTrue(o instanceof Parent);
		assertTrue(o instanceof Child);
		
		o = null;
		assertFalse(o instanceof Object);
		
		Child c = new Child();
		
		assertTrue(c instanceof Object);
		assertTrue(c instanceof Parent);
		assertTrue(c instanceof Child);
		
		c = null;
		assertFalse(c instanceof Child);
	}
}

class Parent{
	
}

class Child extends Parent{
	
}
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