4.3 Iterating Over Arrays

Cards (110)

  • Arrays store a collection of elements of the same type
  • `for` loops require an iterator that starts at 0
  • `for-each` loops improve array iteration readability
  • To access the element at index 2 in array `arr`, you use `arr[2]
  • The `for-each` loop can modify array elements during iteration.
    False
  • The `for` loop allows access to array elements using their index
  • What is the key advantage of the `for-each` loop over the `for` loop in terms of code clarity?
    Improves readability
  • What is the primary purpose of the `for-each` loop in Java?
    Simplified array iteration
  • The `for` loop can modify array elements during iteration.

    True
  • To access the element at index 2 in array `arr`, you use `arr[2]
  • `for` loops provide flexibility to access array elements in any order

    True
  • Match the loop type with its feature:
    `for` Loop ↔️ By index
    `for-each` Loop ↔️ Directly
  • `for` loops allow access to each element by its index
  • The `for-each` loop requires an iterator to start at 0 and increment to the array length.
    False
  • The `for-each` loop improves code readability compared to the `for` loop.

    True
  • Match the array iteration technique with its feature:
    `for` Loop ↔️ By index
    `for-each` Loop ↔️ Directly
  • The `for-each` loop is less flexible but offers higher readability
  • The `for` loop uses an iterator, condition, and increment
  • What are the two primary methods for accessing array elements during iteration in Java?
    `for` and `for-each` loops
  • The `for-each` loop provides a simplified way to access array elements directly
  • The `for-each` loop can modify array elements during iteration.
    False
  • The `for-each` loop provides a simplified way to access array elements without using indices
  • Array indices in Java start at 0.

    True
  • The `for-each` loop is a simplified way to access array elements directly without using indices
  • Order the features of array iteration methods based on their complexity:
    1️⃣ `for-each` loop
    2️⃣ `for` loop
  • A `for-each` loop allows modification of array elements during iteration.
    False
  • The iterator in a `for` loop starts at 1 and increments until the length of the array.
    False
  • A `for-each` loop is more readable than a `for` loop.

    True
  • A `for-each` loop provides high flexibility in accessing array elements.
    False
  • A `for-each` loop has lower readability compared to a `for` loop.
    False
  • A `for` loop allows modification of array elements during iteration.

    True
  • The `for` loop requires an iterator that starts at 0 and increments until it reaches the length of the array.
  • The `for-each` loop cannot modify array elements during iteration.
    True
  • The `for` loop requires an iterator that increments after each iteration.
  • The `for-each` loop improves the readability of array iteration.

    True
  • The increment in a `for` loop updates the iterator after each iteration.

    True
  • The `for-each` loop offers higher flexibility than the `for` loop.
    False
  • When iterating over arrays, you can access elements using either a `for` loop or a `for-each` loop.
  • What is the syntax used to access array elements in a `for` loop in Java?
    array[i]array[i]
  • In a `for` loop, array elements are accessed using their index