java - Adding a check Palindrome sentence method to this code -

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• check string palindrome 29 answers

how implement method check whether input palindrome sentence or not? (while ignoring case)

here's code far , checks if singular word palindrome

import java.util.stack;  public class palich {      private string inputstring;     private stack<character> characterstack = new stack<character>();      public palich()      {         this.inputstring = inputstring;         this.addstack();     }      private void addstack()      {         (int = 0; < this.inputstring.length(); i++)          {             this.characterstack.push(this.inputstring.charat(i));         }      }      private string reversestack()      {         stringbuilder reverseinputstring = new stringbuilder();         while (!this.characterstack.isempty())          {             reverseinputstring.append(this.characterstack.pop());         }         return reverseinputstring.tostring();     }      public boolean ispalindrome()      {         return this.inputstring.equals(this.reversestack());     }  }  

in stringbuilder have .reverse() method

stringbuilder stringbuilder = new stringbuilder("abba");  if(stringbuilder.tostring().equals(stringbuilder.reverse().tostring())) {     system.out.println("palindrom"); }