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Microsoft 98-388

Introduction to Programming Using Java

Verified practice questions with detailed answers, clear explanations, and community discussion.

  • 42

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  • 6 days ago

    last updated

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Question 1 of 42

You need to analyze the following code segment. Line numbers are included for reference only.

Exam 98-388: Question 5 - Image 1

What is the output of line 12 when you run printInt()?

Answer choices
Show answer

Correct answer: A

The num variable is first declared inside the first if block but this variable is local to that block and does not affect the rest of the method. Then, num is declared again and initialized to 1 in line 9. The addOne() method is called with num passed as an argument, but it operates on a local copy of num. The change made to the local num variable in addOne() doesn't affect the num variable in printInt(). After returning from the addOne() function call, the num variable in printInt() is unchanged and still 1. Subtracting 1 from it results in 0.

Community votes

1 vote

ASuggested

100%

Question 2 of 42

The question requires that you evaluate the underlined text to determine if it is correct.

You should use an int data type to store the numeric value 3,000,000,000 (3 billion) so that the LEAST amount of memory is used.

Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct.

Answer choices
Show answer

Correct answer: D

To store the numeric value 3,000,000,000 (3 billion), you need to use a data type that can handle very large numbers. An 'int' typically has a maximum value of 2,147,483,647, which is insufficient for 3 billion. A 'short' and a 'byte' have even smaller maximum values. Therefore, the correct data type to use would be a 'long', which can handle much larger values, including 3 billion.

Question 3 of 42

You need to evaluate the following code segment:

Exam 98-388: Question 22 - Image 1

What happens when the code segment is run?

Answer choices
Show answer

Correct answer: C

When the code segment is run, the double value 2.667 is cast to an integer. In Java, casting a double to an integer truncates the decimal part and keeps the integer part. Therefore, iNum will have a value of 2 after the cast.

Question 4 of 42

You work as a Java programmer.

You need to convert a numeric String to a primitive double value.

What code segment should you use?

Answer choices
Show answer

Correct answer: D

To convert a numeric String to a primitive double value in Java, the correct method to use is Double.parseDouble(numberString). This method belongs to the Double wrapper class and is specifically designed to parse the string argument as a double primitive type, which matches the requirements of the question.

Community votes

3 votes

DSuggested

100%

Question 5 of 42

The question requires that you evaluate the underlined text to determine if it is correct.

You have the following class definition:

Exam 98-388: Question 40 - Image 1

The logError method can be invoked by code in all classes in the same package as the Logger class.

Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct.

Answer choices
Show answer

Correct answer: A

The method logError in the Logger class is defined with the public access modifier, which means it can be accessed by any class, not just classes in the same package or subclasses. Therefore, the statement that it can be invoked by code in all classes in the same package as the Logger class is accurate as it does not limit the accessibility; it just states a fact about a subset of its full accessibility. Thus, no change is needed.

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Alisha Kelly
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Honestly, I had already gone through the official documentation quite thoroughly, but still didn't feel fully confident going in. This helped things finally click for me. I realized I knew the material, but just hadn't connected all the pieces yet.
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Morgan Farmer
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I don't usually leave reviews, but this one felt worth sharing. The questions were quite close to what actually appeared on the exam, more than I expected. I spent about a week going through the material before my test, and it helped me feel more prepared.
Remi Nuyts
United States
Passed ITIL 4 Foundation with 87%. Material was enough by itself.
Archie Hopkins
United States
I had a smooth experience from start to finish. Access was available right away, no technical issues, which made it easy to get started. The content felt relevant and aligned well with what I was looking for.
Nancy Mcbride
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Does what it says it does. Content felt solid, nothing confusing to navigate and I didn't run into any weird issues. I been putting off scheduling the exam for a while and going through this gave me enough confidence to finally book it and pass.
Neil Savage
United States
A very quick response was received via email when a link issue occurred. The study materials provided were high quality and extremely helpful. I was able to complete the test successfully. Many thanks for the excellent support.

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