10 Questions
What is the crucial difference between a built-in array and an ArrayList in Java?
Adding or removing elements in an array requires creating a new array, while elements can be added or removed from an ArrayList directly.
Which method is used to add elements to an ArrayList in Java?
add()
How do you access an element in an ArrayList?
get() method
Which method is used to change an element in an ArrayList?
set()
What is the method to remove an item from an ArrayList?
remove()
How do you find out the number of elements in an ArrayList?
size() method
What type must be used to store elements like int in an ArrayList?
wrapper classes
How would you clear all elements from an ArrayList?
clear()
When looping through an ArrayList, which method should you use to determine the number of iterations?
size()
What is the correct way to iterate over all elements of an ArrayList using a loop in Java?
Using a for loop with a condition based on the size of the ArrayList.
Learn about Java ArrayList which is a resizable array in the java.util package. Compare it with built-in arrays and understand the flexibility it provides for adding and removing elements. Explore the syntax and methods available for managing ArrayLists in Java.
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