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containskey in java

YOU.com answered on July 5, 2022 Popularity 6/10 Helpfulness 3/10

answer containskey in java

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containskey in java

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// Creating a map
Map<String, Integer> map = new HashMap<>();
map.put("apple", 1);
map.put("banana", 2);
map.put("cherry", 3);

// Checking if a specific key is present
String key = "banana";
boolean containsKey = map.containsKey(key);
System.out.println("Contains Key [" + key + "]: " + containsKey);

Popularity 6/10 Helpfulness 3/10 Language java

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Contributed on Sep 12 2023

YOU.com

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HashMap<Integer, String> hashMap = new HashMap<>(); // Create HashMap

hashMap.put(1, "one"); // Put 1 as "one" in HashMap.
hashMap.put(2, "two"); // Put 2 as "two" in HashMap.

System.out.println("Contain 1: " + hashMap.containKey(1)); // Return true.
System.out.println("Contain 2: " + hashMap.containKey(2)); // Return true.
System.out.println("Contain 3: " + hashMap.containKey(3)); // Return false.

Popularity 9/10 Helpfulness 2/10 Language java

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Tags: java containskey

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Contributed on Jul 05 2022

Bredo

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containskey in java

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