Practice Introduction (2.1) - Chapter 2: Data Types, Variables, and Operators

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9 questions

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Exercise
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6 sample questions

Question 1.
What is a variable in Java?
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Think of it like a box for holding information.
Question 2.
Name one primitive data type in Java.
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These are types that define simple values.
3Question 3.
What is the purpose of a variable in Java?
- To store data
- To perform calculations
- To declare functions
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Consider what a variable represents in programming.
4Question 4.
True or False: Java has only one data type.
- True
- False
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Think about the different types you can use.
Question 5.
Consider a scenario where you need to store the names and ages of five students using arrays. Write a code snippet that accomplishes this task.
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Use an array to hold multiple values of the same type.
Question 6.
Write a program that assigns a float value to a variable and then casts it to an integer. What will be the outcome and why?
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Consider how different number types interact when assigned to a variable.

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