package stacks; import java.util.Stack; public class EqualDelimiters { public static boolean checkIfDelimiterIsEqual(String s) { char[] charArr = s.toCharArray(); if(charArr.length <= 1) return true; Stack stack = new Stack<>(); for(Character c : charArr) { if(c == '[' || c == '{' || c == '(') { stack.push(c); } if(c == ')' || c == ']' || c == '}') { if (stack.isEmpty()) { return false; } Character character = stack.peek(); if (c == ')' && character == '(') { stack.pop(); } if (c == ']' && character == '[') { stack.pop(); } if (c == '}' && character == '{') { stack.pop(); } } } if(s.length() > 0 && stack.isEmpty()){ return true; } return false; } public static void main(String[] args) { String string = "{[]}"; System.out.println(checkIfDelimiterIsEqual(string)); } }