Example methods to test EAGER and LAZY behaviour in Java 7 and 8

numbers = Arrays.asList(new Integer[] { 1, 2, 3, 4, 5, 6 });
numberOperations = 0;

private boolean isEven(int n) {
  System.out.println(numberOperations + " - Is " + n + " even?");
  numberOperations++;
  return n % 2 == 0;
}

private int doubleIt(int n) {
  System.out.println(numberOperations + " - we double " + n);
  numberOperations++;
  return n * 2;
}

private boolean isGreaterThan5(int n) {
  System.out.println(numberOperations + " - Is " + n + " greater than 5?");
  numberOperations++;
  return n > 5;
}