Practice Introduction (6.1) - Chapter 6: Arrays and Strings in Java

Practise this section

9 questions

Flashcard drill
3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is the primary feature of an array in Java?
Show hintHide hint
Think about what happens when you declare an array.
Question 2.
What is a string?
Show hintHide hint
Remember how strings are defined in Java.
3Question 3.
What data type is treated as an object in Java?
- Array
- String
- Integer
Show hintHide hint
Think about how characters are stored in Java.
4Question 4.
True or False: The size of an array can be changed after it's created.
- True
- False
Show hintHide hint
Consider the definition of arrays.
Question 5.
Write a program that takes an array of integers and returns the sum of those integers.
Show hintHide hint
Use a for loop for iteration.
Question 6.
Explain how you could implement a simple string manipulation that replaces spaces with hyphens.
Show hintHide hint
Think about string manipulation methods available in Java.

5 more questions in this section. Enroll free to practise them all.