Question stringlengths 1 113 | Answer stringlengths 22 6.98k |
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Can you provide an example of Java ConcurrentHashMap class: computeIfAbsent()?
| //import statement
import java.util.concurrent.*;
import java.util.*;
public class ConcurrentHashMapcomputeIfAbsentExample1_1 {
public static void main(String[] args)
{
// crete a HashMap and add some values
HashMap<String, Integer> mapcon
... |
What is Java ConcurrentLinkedQueue Class?
| ConcurrentLinkedQueue is an unbounded thread-safe queue which arranges the element in FIFO. New elements are added at the tail of this queue and the elements are added from the head of this queue. |
What are the class methods of Java ConcurrentLinkedQueue? |
Method: add()
Description: Inserts the specified element at the tail of this queue
Method: addAll()
Description: Inserts all the elements which are present in the specified collection to the tail of this queue
Method: contains()
Description: Returns true if this queue contains the specified element
Method... |
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