Writing Java Application Code | Module 1

Course Name: Writing Java Application Code (Java as a Second Language Specialization)

Course Link: Writing Java Application Code

These are Writing Java Application Code Week 1 Coursera Answers

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Q1. Java Console Applications instantiate classes for _________ .

• sending output to users
• taking command line input
• sending email
• closing the application

Answer: taking command line input

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Q2. True or False: Console applications are intended for beginners.

• True
• False

Answer: False

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Q3. The IO Input Stream classes process input as what kind of data?

• int
• bool
• String
• Date

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Q4. If you use IO Input Stream classes the input can be converted to an int using which method?

• Integer.parseInt(input)
• toInt(input)
• int(input)
• It cannot be done

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These are Writing Java Application Code Week 1 Coursera Answers

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Q5. The IO Input Stream classes require which of the following for error handling?

• No error handling
• InputError
• IOException
• InputException

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Q6. True or False: Scanner class requires an error handler.

• True
• False

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Q7. The Scanner class has all the methods below except __________ .

• nextLine()
• nextInt()
• nextWord()
• nextDouble()

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Q8. True or False: Scanner requires fewer lines of code for executing Java Console applications.

• True
• False

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Q9. True or False: Like all Console applications written in any language, Java Console applications deliver a low user experience.

• True
• False

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Q10. When building a Java Console application, all classes and depencies are compressed into which kind of file?

• .exe file
• jar file
• .go file
• .asm file

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These are Writing Java Application Code Week 1 Coursera Answers

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