JAVA exercise:

Using the code below, implement the class BalancedParentheses with a method isBalanced that receives a String and checks whether the brackets in it are balanced

import java.util.Scanner; public class BalancedParentheses { public static void main(String[] args) { checkParentheses("((a + b) * t/2 * (1 - t)"); checkParentheses("(a + b) * t)/(2 * (1 - t)"); checkParentheses("a + ((a + b) * t)/(2 * (1 - t))"); System.out.println("Enter an expression: "); Scanner scanner = new Scanner(System.in); String s = scanner.nextLine(); checkParentheses(s); } public static void checkParentheses(String s) { System.out.println(s + " is " + (isBalanced(s) ? "" : "not ") + "parentheses balanced"); } public static boolean isBalanced(String s) { // INSERT YOUR CODE HERE } }