BairesDev test - Given a string with brackets. If the start index of the open bracket is given, find the index of the closing bracket

BracketsUtils.java

import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Stack;

public class BracketsUtils {
	
	private static final char OPENING_BRACKET = '[';
	private static final char CLOSING_BRACKET = ']';

	public static int findClosingBracket(String text, int openingBracketIndex) {
		
		char[] charArray = text.toCharArray();
		
		Map<Integer, Integer> mapBrackets = new LinkedHashMap<>();
		
		Stack<Integer> stackOpeningBrackets = new Stack<>();
		
		for (int i=0; i < charArray.length; i++) {
			if (charArray[i] == OPENING_BRACKET)
				stackOpeningBrackets.push(i);
			if (charArray[i] == CLOSING_BRACKET)
				mapBrackets.put(stackOpeningBrackets.pop(), i);
		}
		
		return mapBrackets.get(openingBracketIndex);
	}

	
	public static void main(String[] args) {
		System.out.println("Closing Bracket index: " + findClosingBracket("[ABC[23]][89]", 9));
	}

}