/Java/Valid parentheses leetcode solution java

Valid parentheses leetcode solution java

HashMap<Character, Character> map = new HashMap<Character, Character>();
	map.put('(', ')');
	map.put('[', ']');
	map.put('{', '}');
 
	Stack<Character> stack = new Stack<Character>();
 
	for (int i = 0; i < s.length(); i++) {
		char curr = s.charAt(i);
 
		if (map.keySet().contains(curr)) {
			stack.push(curr);
		} else if (map.values().contains(curr)) {
			if (!stack.empty() && map.get(stack.peek()) == curr) {
				stack.pop();
			} else {
				return false;
			}
		}
	}
 
	return stack.empty();

Similar codes

0 vote310 views3 answers
FlutterFirebaseCorePlugin.java uses or overrides a deprecated API.
Java
0 vote265 views1 answer
Imageview.setbackground
Java
0 vote268 views1 answer
Maven Dependency for flyway
Java
1 vote267 views1 answer
Java execute funtions at same time
Java
1 vote262 views1 answer
How to create a variable java
Java
0 vote274 views3 answers
How to declare variable in android
Java
0 vote268 views2 answers
Java find index of first alpha character in string
Java
0 vote283 views1 answer
Get executable path java
Java
1 vote270 views1 answer
How to write sensor data into file android studio
Java
3 votes279 views2 answers
Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag
Java