Practice Traversing An Array (6.5) - Chapter 6: Arrays and Strings in Java

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9 questions

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6 sample questions

Question 1.
What is an array?
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Think about how the data types in Java work.
Question 2.
How do you access an element in an array?
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Remember that indexing starts at 0.
3Question 3.
What does the length property of an array return?
- The size of the array
- The last index of the array
- The data type of the array
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Think about how arrays' sizes are defined.
4Question 4.
True or False: The for-each loop can modify the elements of the array while iterating.
- True
- False
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Consider what modifications are allowed during iterations.
Question 5.
Given an array of integers, write a Java method that returns the sum of all elements using a for-each loop.
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Think about how you can accumulate values as you loop through the array.
Question 6.
Create a Java method that accepts an array of strings and prints only those strings that have more than three characters using a for loop.
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You will need a condition inside the loop to filter the strings.

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