Complete Java Solution with detailed Explanation and  100% time beat.
IntuitionThe problem clearly stated that we supposed to find the acronym and then check its equality and then return the boolean value.Approach
Step 1: Initiali
# Intuition
The problem clearly stated that we supposed to find the acronym and then check its equality and then return the boolean value.

# Approach
1. **Step 1:** Initialize a `StringBuilder`.
2. **Step 2:** Iterate along the list and append the character at `0`th index of every word present at every index of the list `words`.
3. **Step 3:** Use the `.equals()` function and return the boolean value.

# Complexity
- Time complexity:
$$O(n)$$ 
where n is number of words in the list.

- Space complexity:
$$O(n)$$

# Code
```java []
class Solution {
    public boolean isAcronym(List<String> words, String s) {
        StringBuilder n = new StringBuilder();
        for(String word : words){
            n.append(word.charAt(0));
        }
        return n.toString().equals(s);
    }
}
```
['Array', 'String', 'String Matching', 'Java']