/Java/Balance string unbalanced string check java stack Hacker rank

Balance string unbalanced string check java stack Hacker rank

import java.util.*;
class Solution{
	
	public static void main(String []argh)
	{
		Scanner sc = new Scanner(System.in);
		Stack<String> st=new Stack<>();
		while (sc.hasNext()) {
			String input=sc.next();
            //Complete the code
            System.out.println(valid(input));
		}}
         static boolean valid(String s)
        {Stack<Character> st=new Stack<>();
          for(int i=0;i<s.length();i++)
          {
          char ch=s.charAt(i);
          if(ch=='['||ch=='{'||ch=='(')
          {
              st.push(ch);
          }
          else if(st.isEmpty())
          {
              return false;
          } 
          else{
          char top=st.pop();
          if(ch!=']' && top=='[' || ch!='}' && top=='{' || ch!=')'&&top=='(')
          {
              return false;
          }}
            //return true;
        }
        return st.isEmpty();
        
        }
		
	}

Similar codes

2 votes313 views2 answers
Check if jcheckbox is checked java
Java
0 vote320 views1 answer
Java mockito any string import
Java
0 vote325 views1 answer
Separateur JMenu swing java
Java
0 vote383 views1 answer
Java page setup
Java
0 vote332 views1 answer
Java logger with different colors
Java
0 vote325 views3 answers
Java stackoverflowerror
Java
0 vote323 views1 answer
Override onbackpressed in fragment
Java
0 vote409 views2 answers
Java map to list or array
Java
0 vote337 views1 answer
Press enter in robot java
Java
0 vote339 views1 answer
Printwriter java append to file
Java