# 4 – Arrays (Level 3)

## 2 Exercises

1. Print out the elements of the following array: int [] numbers = {1,2,3,4,5};
2. Declare and initialize a String array containing the days of the week. Print out a random day.
3. Output the sum of the elements in this array: int [] values = {3,5,4,7,2,3};
4. Output the average of the elements in this array: int [] values = {3,4,5,6};
5. Declare an int array of length 5. Use a for loop to prompt for 5 numbers and enter them into the array. Print out the array.
6. Declare an int array of length 4. Use a for loop to prompt for 4 numbers and enter them into the array. Print out the average of the four numbers
7. The following code will convert a String s to an array of characters c. Print out the characters: String s = “This is a string”; char [] c = s.toCharArray();
8. Use what you learned in the last question to count the number of times the letter e occurs in the String “I never saw a purple cow”

This site uses Akismet to reduce spam. Learn how your comment data is processed.