Fix typo in NextGraterElement (TheAlgorithms#4976)

Author: ImmaculateShaba

…algorithms/stacks/NextGraterElement.java …lgorithms/stacks/NextGreaterElement.javasrc/main/java/com/thealgorithms/stacks/NextGraterElement.java renamed to src/main/java/com/thealgorithms/stacks/NextGreaterElement.java src/main/java/com/thealgorithms/stacks/NextGraterElement.java renamed to src/main/java/com/thealgorithms/stacks/NextGreaterElement.java

@@ -4,26 +4,26 @@
 import java.util.Stack;
 
 /*
- Given an array "input" you need to print the first grater element for each element.
- For a given element x of an array, the Next Grater element of that element is the
- first grater element to the right side of it. If no such element is present print -1.
+ Given an array "input" you need to print the first greater element for each element.
+ For a given element x of an array, the Next greater element of that element is the
+ first greater element to the right side of it. If no such element is present print -1.
 
  Example
  input = { 2, 7, 3, 5, 4, 6, 8 };
  At i = 0
- Next Grater element between (1 to n) is 7
+ Next greater element between (1 to n) is 7
  At i = 1
- Next Grater element between (2 to n) is 8
+ Next greater element between (2 to n) is 8
  At i = 2
- Next Grater element between (3 to n) is 5
+ Next greater element between (3 to n) is 5
  At i = 3
- Next Grater element between (4 to n) is 6
+ Next greater element between (4 to n) is 6
  At i = 4
- Next Grater element between (5 to n) is 6
+ Next greater element between (5 to n) is 6
  At i = 5
- Next Grater element between (6 to n) is 8
+ Next greater element between (6 to n) is 8
  At i = 6
- Next Grater element between (6 to n) is -1
+ Next greater element between (6 to n) is -1
 
  result : [7, 8, 5, 6, 6, 8, -1]
 
@@ -37,11 +37,11 @@ Next Grater element between (6 to n) is -1
  popped elements.
  d. Finally, push the next in the stack.
 
- 3. If elements are left in stack after completing while loop then their Next Grater element is
+ 3. If elements are left in stack after completing while loop then their Next greater element is
  -1.
  */
 
-public class NextGraterElement {
+public class NextGreaterElement {
 
  public static int[] findNextGreaterElements(int[] array) {
  if (array == null) {