Create Palindrome sentence

Palindrome sentence

@@ -0,0 +1,50 @@
+//Palindrome sentence
+
+import java.io.*;
+import java.util.*;
+
+class GFG {
+    public static void main(String args[]) throws IOException {
+        Scanner sc = new Scanner(System.in);
+        int t = Integer.parseInt(sc.nextLine());
+
+        while(t > 0) {
+            String s = sc.nextLine();
+            Solution ob = new Solution();
+
+            if(ob.sentencePalindrome(s)) {
+                System.out.println("true");
+            }
+            else {
+                System.out.println("false");
+            }
+
+            t--;
+        }
+    }
+}
+
+class Solution {
+    public boolean sentencePalindrome(String s) {
+
+        int i = 0, j = s.length() - 1;
+
+        while(i < j) {
+            if(!Character.isLetterOrDigit(s.charAt(i))) {
+                i++;
+            }
+            else if(!Character.isLetterOrDigit(s.charAt(j))) {
+                j--;
+            }
+            else if(Character.toLowerCase(s.charAt(i)) == Character.toLowerCase(s.charAt(j))) {
+                i++;
+                j--;
+            }
+            else {
+                return false;
+            }
+        }
+
+        return true;
+    }
+}