Java Code Examples for java.util.ArrayDeque#iterator()
The following examples show how to use
java.util.ArrayDeque#iterator() .
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Example 1
Source File: ArrayDequeTest.java From openjdk-jdk9 with GNU General Public License v2.0 | 6 votes |
/** * iterator.remove() removes current element */ public void testIteratorRemove() { final ArrayDeque q = new ArrayDeque(); final Random rng = new Random(); for (int iters = 0; iters < 100; ++iters) { int max = rng.nextInt(5) + 2; int split = rng.nextInt(max - 1) + 1; for (int j = 1; j <= max; ++j) q.add(new Integer(j)); Iterator it = q.iterator(); for (int j = 1; j <= split; ++j) assertEquals(it.next(), new Integer(j)); it.remove(); assertEquals(it.next(), new Integer(split + 1)); for (int j = 1; j <= split; ++j) q.remove(new Integer(j)); it = q.iterator(); for (int j = split + 1; j <= max; ++j) { assertEquals(it.next(), new Integer(j)); it.remove(); } assertFalse(it.hasNext()); assertTrue(q.isEmpty()); } }
Example 2
Source File: ArrayDequeTest.java From j2objc with Apache License 2.0 | 6 votes |
/** * iterator.remove() removes current element */ public void testIteratorRemove() { final ArrayDeque q = new ArrayDeque(); final Random rng = new Random(); for (int iters = 0; iters < 100; ++iters) { int max = rng.nextInt(5) + 2; int split = rng.nextInt(max - 1) + 1; for (int j = 1; j <= max; ++j) q.add(new Integer(j)); Iterator it = q.iterator(); for (int j = 1; j <= split; ++j) assertEquals(it.next(), new Integer(j)); it.remove(); assertEquals(it.next(), new Integer(split + 1)); for (int j = 1; j <= split; ++j) q.remove(new Integer(j)); it = q.iterator(); for (int j = split + 1; j <= max; ++j) { assertEquals(it.next(), new Integer(j)); it.remove(); } assertFalse(it.hasNext()); assertTrue(q.isEmpty()); } }
Example 3
Source File: ArrayDequeTest.java From openjdk-jdk9 with GNU General Public License v2.0 | 5 votes |
/** * Iterator iterates through all elements */ public void testIterator() { ArrayDeque q = populatedDeque(SIZE); Iterator it = q.iterator(); int i; for (i = 0; it.hasNext(); i++) assertTrue(q.contains(it.next())); assertEquals(i, SIZE); assertIteratorExhausted(it); }
Example 4
Source File: ArrayDequeTest.java From openjdk-jdk9 with GNU General Public License v2.0 | 5 votes |
/** * Iterator ordering is FIFO */ public void testIteratorOrdering() { final ArrayDeque q = new ArrayDeque(); q.add(one); q.add(two); q.add(three); int k = 0; for (Iterator it = q.iterator(); it.hasNext();) { assertEquals(++k, it.next()); } assertEquals(3, k); }
Example 5
Source File: ArrayDequeTest.java From j2objc with Apache License 2.0 | 5 votes |
void checkToArray(ArrayDeque q) { int size = q.size(); Object[] o = q.toArray(); assertEquals(size, o.length); Iterator it = q.iterator(); for (int i = 0; i < size; i++) { Integer x = (Integer) it.next(); assertEquals((Integer)o[0] + i, (int) x); assertSame(o[i], x); } }
Example 6
Source File: ArrayDequeTest.java From j2objc with Apache License 2.0 | 5 votes |
void checkToArray2(ArrayDeque q) { int size = q.size(); Integer[] a1 = (size == 0) ? null : new Integer[size - 1]; Integer[] a2 = new Integer[size]; Integer[] a3 = new Integer[size + 2]; if (size > 0) Arrays.fill(a1, 42); Arrays.fill(a2, 42); Arrays.fill(a3, 42); Integer[] b1 = (size == 0) ? null : (Integer[]) q.toArray(a1); Integer[] b2 = (Integer[]) q.toArray(a2); Integer[] b3 = (Integer[]) q.toArray(a3); assertSame(a2, b2); assertSame(a3, b3); Iterator it = q.iterator(); for (int i = 0; i < size; i++) { Integer x = (Integer) it.next(); assertSame(b1[i], x); assertEquals(b1[0] + i, (int) x); assertSame(b2[i], x); assertSame(b3[i], x); } assertNull(a3[size]); assertEquals(42, (int) a3[size + 1]); if (size > 0) { assertNotSame(a1, b1); assertEquals(size, b1.length); for (int i = 0; i < a1.length; i++) { assertEquals(42, (int) a1[i]); } } }
Example 7
Source File: ArrayDequeTest.java From j2objc with Apache License 2.0 | 5 votes |
/** * Iterator iterates through all elements */ public void testIterator() { ArrayDeque q = populatedDeque(SIZE); Iterator it = q.iterator(); int i; for (i = 0; it.hasNext(); i++) assertTrue(q.contains(it.next())); assertEquals(i, SIZE); assertIteratorExhausted(it); }
Example 8
Source File: ArrayDequeTest.java From j2objc with Apache License 2.0 | 5 votes |
/** * Iterator ordering is FIFO */ public void testIteratorOrdering() { final ArrayDeque q = new ArrayDeque(); q.add(one); q.add(two); q.add(three); int k = 0; for (Iterator it = q.iterator(); it.hasNext();) { assertEquals(++k, it.next()); } assertEquals(3, k); }