Write a function that returns whether or not a string has balanced parentheses.

Question

Anoniem · Accepted Answer

class Main {
  static boolean isBalanced(String S) {
    int openParen = 0;
    for(int i = 0; i < S.length(); i++) {
      char s = S.charAt(i);
      if(s == '(') {
        openParen++;
      } else if(s == ')') {
        openParen--;
      }
    }
    return openParen == 0 ? true : false;
  }
  public static void main(String[] args) {
    System.out.println(isBalanced(""));
    System.out.println(isBalanced("("));
    System.out.println(isBalanced(")"));
    System.out.println(isBalanced("()"));
    System.out.println(isBalanced("(()"));
    System.out.println(isBalanced("())"));
    System.out.println(isBalanced("(())"));
  }
}

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