/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

4 votes253 views1 answer
How to call a function in java
Java
0 vote172 views1 answer
Java Convert a string IPv4 IP address to the equivalent long numeric value.
Java
-1 vote179 views2 answers
Java web app login system
Java
0 vote281 views1 answer
Ternary operator in java for null check
Java
0 vote190 views1 answer
UTC in Java
Java
0 vote191 views1 answer
Castle stones java qn
Java
0 vote294 views1 answer
Android iterate through radio group java
Java
1 vote277 views1 answer
Java windowlistener close window
Java
0 vote241 views1 answer
.code domain
Java
0 vote188 views1 answer
Com.android.okhttp.internal.http.HttpURLConnectionImpl cannot be cast to javax.net.ssl.HttpsURLConnection
Java