CheckIfKeyPresent

package Udemyprograms;

public class ArraysGeeksForGeeks4 {

  public static boolean ifKeyPresent(int[] arr, int key, int size) {

    /** initialise counter =0,res for checking whether we reached the no of size iteration
     *  iterate a loop
     *  inside loop check if the element is key
     *  if yes make res true
     *  if check we reached the size 
     *  if yes check whether the res is true make it false;
     *  if yes continue iteration 
     */
    int counter = 0;
    boolean res = false;
    for (int i = 0; i < arr.length; i++) {
      counter++;
      if (arr[i] == key) {
        res = true;
      }
      if (counter == size || i == arr.length - 1) {
        if (!res) {
          return false;
        }
        res = false;
        counter = 0;
      }
    }
    return true;
  }

  public static void main(String args[]) {
    int arr[] = { 5, 8, 7, 12, 14, 3, 9};
    System.out.println(ifKeyPresent(arr, 8, 2));
  }

}