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import java.util.IdentityHashMap; public class IdentityHashMapContainsKeyExample1 { public static void main(String[] args) { //Creating an object of IdentityHashMap class IdentityHashMap
map = new IdentityHashMap
(6); //Putting key-value pairs inside map map.put("Java", 1); map.put("is", 2); map.put("the", 3); map.put("best", 4); map.put("programming", 5); map.put("language", 6); //Creating an Object String str1 = "Java"; String str2 = "Object"; String str3 = "Programming"; String str4 = "programming"; //Checking if the specified key is present in the calling IdentityHashMap System.out.println(map.containsKey(str1)); System.out.println(map.containsKey(str2)); System.out.println(map.containsKey(str3)); System.out.println(map.containsKey(str4)); } }
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