content: package org.alx.article._32_java_concurrency_best_practices;
  
  import java.util.Map;
  import java.util.concurrent.ConcurrentHashMap;
  
  public class ConcurrentHashMapExample {
      static <K, V> void concurrentHashMapExample(K key1, V value1, K key2, V value2, V newValue, int initialCapacity, int loadFactor) {
          // Initialization
          ConcurrentHashMap<K, V> map = new ConcurrentHashMap<>();
  
          // Adding and Updating Elements
          map.put(key1, value1);
          map.put(key2, value2);
  
          // Retrieving Elements
          V value = map.get(key1);
  
          // Removing Elements
          V removedValue = map.remove(key1);
  
          // Iterating over Elements
          for (Map.Entry<K, V> entry : map.entrySet()) {
              // Process each key-value pair
          }
  
          // Atomic Operations
          map.putIfAbsent(key1, value); // Adds if absent
          map.replace(key1, newValue); // Replaces value
  
          // Specifying Concurrency Level
          int concurrencyLevel = 16;
          ConcurrentHashMap<K, V> newMap = new ConcurrentHashMap<>(initialCapacity, loadFactor, concurrencyLevel);
      }
  }
  