GroupingSymbolsChecker.java

import java.util.Stack;

public class GroupingSymbolsChecker {

    public static boolean isBalanced(String code) {
        Stack<Character> stack = new Stack<>();
        
        for (int i = 0; i < code.length(); i++) {
            char ch = code.charAt(i);
            
            // Push opening symbols to stack
            if (ch == '(' || ch == '{' || ch == '[') {
                stack.push(ch);
            } 
            // Check closing symbols
            else if (ch == ')' || ch == '}' || ch == ']') {
                if (stack.isEmpty()) {
                    return false; // No opening symbol for this closing symbol
                }
                char top = stack.pop();
                if (!isMatchingPair(top, ch)) {
                    return false;
                }
            }
        }
        
        // After processing, stack should be empty
        return stack.isEmpty();
    }

    private static boolean isMatchingPair(char open, char close) {
        return (open == '(' && close == ')') ||
               (open == '{' && close == '}') ||
               (open == '[' && close == ']');
    }

    public static void main(String[] args) {
        String code = "{ int a = (5 + 3) * [2 + 4]; }";
        
        if (isBalanced(code)) {
            System.out.println("The code has balanced grouping symbols.");
        } else {
            System.out.println("The code has unbalanced grouping symbols.");
        }
    }
}