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java hashmap get nonexistent key Code Example
java hashmap get nonexistent key 
// it returns null
HashMap<Integer,Integer> m = new HashMap<>();
m.put(5, 3);
m.get(5); // returns 3
m.get(4); // returns null



Java

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Type:
 Code Example
Category:
 Coding
Sub Category:
 Code Example
Uploaded by:
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