98-388 : Introduction to Programming Using Java : Part 02

98-388 : Introduction to Programming Using Java : Part 02

1. 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.
   • No change is needed.
   • a short
   • a byte
   • a long

2. You need to evaluate the following code segment:

   

   What happens when the code segment is run?

   • iNum has a value of 0.
   • An exception is thrown.
   • iNum has a value of 2.
   • iNum has a value of 3.

3. DRAG DROP

   You are writing a Java method.

   The program must meet the following requirements:

   -Accept a String parameter firstName
   -Display a welcome message that contains firstName
   -Ensure that the first letter of the name is capitalized, and the remaining letters are in lowercase

   How should you complete the code? To answer, drag the appropriate code segment to the correct position. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

   NOTE: Each correct selection is worth one point.

   

   

    

4. You work as a Java programmer.

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

   What code segment should you use?

   • Double.valueOf(numberString);
   • double.parseDouble(numberString);
   • String.parseDouble(numberString);
   • Double.parseDouble(numberString);

5. DRAG DROP

   Your instructor asks you to evaluate four arithmetic code segments.

   What is the value of each code segment? To answer, drag the appropriate value from the column on the left to its code segment on the right. Each data may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

   

   

    

6. HOTSPOT

   You are writing a Java console program. The program accepts command line arguments.

   You need to ensure that the main method parses and handles each command line argument.

   How should you complete the code? To answer, select the appropriate code segments in the answer area.

   NOTE: Each correct selection is worth one point.

   

   

    

7. HOTSPOT

   You work as an intern Java programmer at Adventure Works. Your team lead asks you to create a method.

   The method must meet the following requirements:

   -Accept an int array
   -Check for duplicate values in the array
   -Stop the outer loop as soon as a duplicate value has been detected and return true
   -Return false if all values in the array are unique

   How should you complete the code? To answer, select the appropriate code segments in the answer area.

   NOTE: Each correct selection is worth one point.

   

   

8. HOTSPOT

   You are interviewing for a job as a Java developer. You need to demonstrate your understanding of switch statements.

   For each of the following code segments, select Yes if the code segment can be changed to a switch statement with up to three case statements. Otherwise, select No.

   NOTE: Each correct selection is worth one point.

   

   

    

9. HOTSPOT

   You are writing a Java method.

   The method must meet the following requirements:

   -Accept a String array named entries
   -Iterate through entries
   -Stop the iteration and return false if any element has more than 10 characters
   -Otherwise, return true

   How should you complete the code? To answer, select the appropriate code segments in the answer area.

   NOTE: Each correct selection is worth one point.

   

   

    

10. DRAG DROP

    Traders hires you to write a Java program to manage account openings.

    To open a new account, a user must meet one the following requirements:

    -be over 65 years old and have a minimum annual income of 10,000
    -be at least 21 and have an annual income greater than 25,000

    How should you complete the code? To answer, drag the appropriate operator to the correct position. Each operator may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

    NOTE: Each correct selection is worth one point.

    

    

11. HOTSPOT

    You are writing a Java method named countdown.

    The method must meet the following requirements:

    -Accept an int parameter named start
    -Display all numbers from start to zero in decrements of one

    How should you complete the code? To answer, select the appropriate code segments in the answer area.

    NOTE: Each correct selection is worth one point.

    

    

     

12. HOTSPOT

    You work as a Java programmer. A member of the team creates the following program. Line numbers are included for reference only.

    

    The program is supposed to display a message to the console while it counts down from 60. The method does not work as intended.

    How should you complete the code? To answer, select the appropriate code segments in the answer area.

    NOTE: Each correct selection is worth one point.

    

    

     

13. HOTSPOT

    You are writing a Java console program.

    The program must meet the following requirements:

    -Read a line of text entered by the user
    -Print each word in the text to the console on a separate line

    How should you complete the code? To answer, select the appropriate code segments in the answer area.

    NOTE: Each correct selection is worth one point.

    

    

     

14. HOTSPOT

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

    

    Use the drop-down menus to select the answer choice that answers each question based on the information presented in the code.

    NOTE: Each correct selection is worth one point.

    

    

     

15. HOTSPOT

    You work for Woodgrove Bank as a Java programmer.

    You need to evaluate the following class. Line numbers are included for reference only.

    

    For each of the following statements, select Yes if the statement is true. Otherwise, select No.

    NOTE: Each correct selection is worth one point.

    

    

     

16. HOTSPOT

    You have the following code segment. Line numbers are included for reference only.

    

    The code does not compile.

    For each of the following statements, select Yes if the action is required to resolve the compilation error. Otherwise, select No.

    NOTE: Each correct selection is worth one point.

    

    

     

17. DRAG DROP

    You have a Java class named InsurancePolicy.

    You need to define a constant data member named RATE. The data member must be accessible by any class without instantiating the InsurancePolicy class.

    How should you complete the code? To answer, drag the appropriate code segment to the correct position. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

    NOTE: Each correct selection is worth one point.

    

    

     

18. HOTSPOT

    You work on a team that develops e-commerce applications. A member of the team creates a class named DB that connects to a database. The class contains a method named query.

    You need to initiate the DB class and invoke the query method.

    How should you complete the code? To answer, select the appropriate code segments in the answer area.

    NOTE: Each correct selection is worth one point.

    

    

     

19. HOTSPOT

    You are writing a Java class named SavingsAccount.

    The class must meet the following requirements:

    Inherit from an existing class named Account
    Include a constructor that uses the base class constructor to initialize the starting balance
    Include a substitute toString() method

    How should you complete the code? To answer, select the appropriate code segments in the answer area.

    NOTE: Each correct selection is worth one point.

    

    

     

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

    You have the following class definition:

    

    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.

    • No change is needed
    • only by the Logger class
    • only by the Logger class and classes in the same package that inherit from it
    • by all classes in all packages

21. HOTSPOT

    You write the following Java program for Munson’s Pickles and Preserves Farm. Line numbers are included for reference only.

    

    You encounter error messages when you attempt to compile the program.

    You need to ensure the program compiles successfully.

    How should you complete the code? To answer, select the appropriate code segments in the answer area.

    NOTE: Each correct selection is worth one point.

    

    

     

22. HOTSPOT

    You need to evaluate the output of the following code segment. Line numbers are included for reference only.

    

    For each of the following outputs, select Yes if the output is displayed. Otherwise, select No.

    NOTE: Each correct selection is worth one point.