Standard for loop traversal

Enhanced for loop traversal

Comparing traversal methods

The removal trap (THE most important ArrayList concept)

The problem: Forward removal skips elements

Solution 1: Traverse backward

Solution 2: Adjust the index after removal

Solution 3: While loop

ConcurrentModificationException

Modifying elements during traversal

Complete example: Filtering a list

AP Exam Tips

Common Mistakes

Key Vocabulary