NotNull(ConcurrentLinkedQueue.java:920) at java.util.concurrent.ConcurrentLinkedQueue.offer(ConcurrentLinkedQueue.java:327) at java.util.concurrent.ConcurrentLinkedQueue.add(ConcurrentLinkedQueue.java:297) at com.javaTpoint.ConcurrentLinkedQueueRemoveAllExample3.main(ConcurrentLinkedQueueRemoveAllExample3.java...
Exception in thread "main" java.lang.NullPointerException at java.util.Objects.requireNonNull(Objects.java:203) at java.util.Collection.removeIf(Collection.java:410) at com.javaTpoint.ArrayBlockingQueueRemoveIfExample3.main(ArrayBlockingQueueRemoveIfExample3.java:15) 如果指定的 Predicate 过滤器为 null...
輸出: Exception in thread "main" java.lang.NullPointerException at java.util.Objects.requireNonNull(Objects.java:203) Total no:[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20] at java.util.Collection.removeIf(Collection.java:410) at com.javaTpo...
at java.util.concurrent.ConcurrentLinkedQueue.checkNotNull(ConcurrentLinkedQueue.java:920) at java.util.concurrent.ConcurrentLinkedQueue.offer(ConcurrentLinkedQueue.java:327) at java.util.concurrent.ConcurrentLinkedQueue.add(ConcurrentLinkedQueue.java:297) at com.javaTpoint.ConcurrentLinkedQueueForEachExample...
Exception in thread "main" java.lang.NullPointerException at java.util.TreeMap.put(TreeMap.java:563) at java.util.TreeSet.add(TreeSet.java:255) at com.javaTpoint.ConcurrentLinkedQueueRetainAllExample3.main(ConcurrentLinkedQueueRetainAllExample3.java:13) 相關...
Patients left in the hospital = 2 Sonia Tejashvi 例子3 importjava.util.ArrayList;importjava.util.List;importjava.util.concurrent.ArrayBlockingQueue;publicclassArrayBlockingQueueRemoveAllExample3{publicstaticvoidmain(String[] args){ List<Integer> list =newArrayList<Integer>();intcapacity =100; ...
Exception in thread "main" java.lang.NullPointerException at java.util.TreeMap.put(TreeMap.java:563) at java.util.TreeSet.add(TreeSet.java:255) at com.javaTpoint.ArrayBlockingQueueRetainAllExample3.main(ArrayBlockingQueueRetainAllExample3.java:15) ...