IterablesExample.java 文件源码

/**
 * Filter by class type
 */
@Test
public void filter_elements_by_type () {

    List<Object> randomObjects = Lists.newArrayList();
    randomObjects.add(new Integer(15));
    randomObjects.add(new Double(12));
    randomObjects.add("hello");
    randomObjects.add(Lists.newArrayList());
    randomObjects.add(Maps.newConcurrentMap());
    randomObjects.add("world");

    Iterable<String> strings = Iterables.filter(randomObjects, String.class);

    assertThat(strings, IsIterableContainingInAnyOrder.
            <String>containsInAnyOrder("hello", "world"));
}