c++ hashmap check if key exists code example

Example 1: check if key exists in map c++

if ( m.find("f") == m.end() ) {
  // not found
} else {
  // found
}

Example 2: if key exists in hashmap java

Hash_Map.containsKey(key_element)

Example 3: c++ map key exists

if ( !(myMap.find("key") == myMap.end()) ) {	// "key" exists	
  
} else {	// not found	
  
}