6.3 - Declaring and Initializing Arrays
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is the syntax for declaring an array of integers?
💡 Hint: Think about the basic structure of an array declaration.
How would you initialize an array to hold 10 integers?
💡 Hint: Remember the use of the 'new' keyword followed by the desired size.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the default value of an uninitialized integer array element?
💡 Hint: Think about what happens with uninitialized variables in Java.
True or False: Array indices start at 1 in Java.
💡 Hint: Remember the foundational concept of array indexing in programming.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Create an array of 10 integers. Assign each element to the square of its index and print the array using a loop.
💡 Hint: Use a loop to iterate over the array.
Write a Java method that accepts an integer array and returns the sum of its elements.
💡 Hint: Consider how to iterate over each element to calculate the sum.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.