Examples of java.util.NavigableMap.tailMap()

java.util.NavigableMap.tailMap()
Returns a view of the portion of this map whose keys are greater than (or equal to, if {@code inclusive} is true) {@code fromKey}. The returned map is backed by this map, so changes in the returned map are reflected in this map, and vice-versa. The returned map supports all optional map operations that this map supports.
The returned map will throw an {@code IllegalArgumentException}on an attempt to insert a key outside its range. @param fromKey low endpoint of the keys in the returned map @param inclusive {@code true} if the low endpointis to be included in the returned view @return a view of the portion of this map whose keys are greater than(or equal to, if {@code inclusive} is true) {@code fromKey} @throws ClassCastException if {@code fromKey} is not compatiblewith this map's comparator (or, if the map has no comparator, if {@code fromKey} does not implement {@link Comparable}). Implementations may, but are not required to, throw this exception if {@code fromKey} cannot be compared to keyscurrently in the map. @throws NullPointerException if {@code fromKey} is nulland this map does not permit null keys @throws IllegalArgumentException if this map itself has arestricted range, and {@code fromKey} lies outside thebounds of the range

        key = endKey;
        assertTrue(subDecendingMap_Included.containsKey(key));
        assertFalse(subDecendingMap_Excluded.containsKey(key));


        endKey = new Integer(108).toString();
        subDecendingMap_Included = decendingMap.tailMap(endKey, true);
        subDecendingMap_Excluded = decendingMap.tailMap(endKey, false);
        key = endKey;
        assertTrue(subDecendingMap_Included.containsKey(key));
        assertFalse(subDecendingMap_Excluded.containsKey(key));
        for (int i = 107; i > 100; i--) {

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        assertTrue(subDecendingMap_Included.containsKey(key));
        assertFalse(subDecendingMap_Excluded.containsKey(key));


        endKey = new Integer(108).toString();
        subDecendingMap_Included = decendingMap.tailMap(endKey, true);
        subDecendingMap_Excluded = decendingMap.tailMap(endKey, false);
        key = endKey;
        assertTrue(subDecendingMap_Included.containsKey(key));
        assertFalse(subDecendingMap_Excluded.containsKey(key));
        for (int i = 107; i > 100; i--) {
            key = new Integer(i).toString();

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        key = new Integer(100).toString();
        assertFalse(subDecendingMap_Included.containsKey(key));
        assertFalse(subDecendingMap_Included.containsKey(key));


        endKey = new Integer(101).toString();
        subDecendingMap_Included = decendingMap.tailMap(endKey, true);
        subDecendingMap_Excluded = decendingMap.tailMap(endKey, false);
        key = endKey;
        assertEquals(1, subDecendingMap_Included.size());
        assertTrue(subDecendingMap_Included.containsKey(key));
        assertTrue(subDecendingMap_Excluded.isEmpty());

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        assertFalse(subDecendingMap_Included.containsKey(key));
        assertFalse(subDecendingMap_Included.containsKey(key));


        endKey = new Integer(101).toString();
        subDecendingMap_Included = decendingMap.tailMap(endKey, true);
        subDecendingMap_Excluded = decendingMap.tailMap(endKey, false);
        key = endKey;
        assertEquals(1, subDecendingMap_Included.size());
        assertTrue(subDecendingMap_Included.containsKey(key));
        assertTrue(subDecendingMap_Excluded.isEmpty());

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        assertTrue(subDecendingMap_Included.containsKey(key));
        assertTrue(subDecendingMap_Excluded.isEmpty());


        endKey = new Integer(100).toString();
        try {
            decendingMap.tailMap(endKey, true);
            fail("should throw IllegalArgumentException");
        } catch (IllegalArgumentException e) {
            // Expected
        }
        subDecendingMap_Excluded = decendingMap.tailMap(endKey, false);

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            decendingMap.tailMap(endKey, true);
            fail("should throw IllegalArgumentException");
        } catch (IllegalArgumentException e) {
            // Expected
        }
        subDecendingMap_Excluded = decendingMap.tailMap(endKey, false);
        assertTrue(subDecendingMap_Excluded.isEmpty());


        endKey = new Integer(99).toString();
        try {
            decendingMap.tailMap(endKey, true);

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        subDecendingMap_Excluded = decendingMap.tailMap(endKey, false);
        assertTrue(subDecendingMap_Excluded.isEmpty());


        endKey = new Integer(99).toString();
        try {
            decendingMap.tailMap(endKey, true);
            fail("should throw IllegalArgumentException");
        } catch (IllegalArgumentException e) {
            // Expected
        }
        try {

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            fail("should throw IllegalArgumentException");
        } catch (IllegalArgumentException e) {
            // Expected
        }
        try {
            decendingMap.tailMap(endKey, false);
            fail("should throw IllegalArgumentException");
        } catch (IllegalArgumentException e) {
            // Expected
        }

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        // navigableMap_startIncluded_endExcluded
        decendingMap = ((NavigableMap) subMap_startIncluded_endExcluded)
                .descendingMap();
        endKey = new Integer(110).toString();
        try {
            decendingMap.tailMap(endKey, true);
            fail("should throw IllegalArgumentException");
        } catch (IllegalArgumentException e) {
            // Expected
        }

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        } catch (IllegalArgumentException e) {
            // Expected
        }


        try {
            decendingMap.tailMap(endKey, false);
            fail("should throw IllegalArgumentException");
        } catch (IllegalArgumentException e) {
            // Expected
        }

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