Added a Palindrome Checker

RockLee444 · web-flow · commit 73a504c1c736 · 2019-10-15T20:40:35.000-05:00
Added a little program to know whether or not a sentence is a palindrome.
diff --git a/String Reversal/Palindrome.java b/String Reversal/Palindrome.java
@@ -0,0 +1,51 @@
+/*RockLee444*/
+import java.util.Scanner; 
+public class Palindrome{
+    public static void main(String[] args){
+        Scanner sc = new Scanner(System.in);
+        String word;
+        System.out.println("Write a sentence and press enter to know if it is a palindrome.");
+        word = sc.nextLine();
+        String[] wordArray = word.toUpperCase().split(" ");
+        String noBlanksWord="";
+        int numCaracteres=0;
+        for(int i=0;i<wordArray.length;i++){
+            numCaracteres+= wordArray[i].length();
+            noBlanksWord+=wordArray[i];
+        }
+        
+        if(verifyWord(noBlanksWord)){
+            System.out.println("The sentence: " + word + " IS a palindrome.");
+        } else {
+            System.out.println("The sentence: " + word + " IS NOT a palindrome.");
+        }
+        
+    }
+
+    public static boolean verifyWord(String word){
+        boolean isPalindrome = false;
+        char[] normalWordArray = word.toCharArray();
+        char[] inverseWordArray = new char[normalWordArray.length];
+        
+        int j=0;
+        //Filling the inverseWordArray 
+        for(int i=normalWordArray.length-1;i>=0;i--){
+            inverseWordArray[j] = normalWordArray[i];
+            j++;
+        }
+        //Verifying if it is palindrome
+        int counter=0;
+        for(int i=0; i<normalWordArray.length;i++){
+            if(normalWordArray[i] == inverseWordArray[i]){
+                counter++;
+            }
+        }
+        if(counter==normalWordArray.length){
+            isPalindrome = true;
+        }
+        else{
+            isPalindrome = false;
+        }
+        return isPalindrome;
+    }
+}
