LeetCode 2727: Is Object Empty Solution
Master LeetCode problem 2727 (Is Object Empty), a easy challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.
2727. Is Object Empty
Problem Explanation
Explanation:
To determine if an object or an array is empty, we can simply check if the length of the object or array is zero. For objects, we can check the number of keys it has, and for arrays, we can check the number of elements it contains. If the length is zero, then the object or array is considered empty.
- Time Complexity: O(1)
- Space Complexity: O(1)
:
Solution Code
public boolean isObjectEmpty(Object obj) {
if (obj instanceof Map) {
return ((Map<?, ?>) obj).isEmpty();
} else if (obj instanceof List) {
return ((List<?>) obj).isEmpty();
}
return true;
}Try It Yourself
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