Practice Arrays Vs. Strings (10.6) - Arrays and Strings

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8 questions

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Exercise
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6 sample questions

Question 1.
What is the primary purpose of arrays in Java?
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Think about what collections of data often need.
Question 2.
Can strings in Java be changed after creation?
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What does immutability mean?
3Question 3.
What does an array in Java store?
- Multiple values of different types
- Multiple values of the same type
- Only one value
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Consider what a collection means in programming.
4Question 4.
True or False: Strings in Java can be modified after creation.
- True
- False
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What does the term 'immutable' suggest?
Question 5.
Create an integer array to store five different numbers, define it, assign values, and write code to print each value.
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Use a loop for output.
Question 6.
Write a function that takes a string and returns the first character of that string.
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Think about how to access specific characters in a string.

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