1Z0-808 practice questions 141–150

1. Question 141 · 200 in bank

   Given the code fragment:

   

   What is the result?

   • AMay 04, 2014T00:00:00.000
   • B2014-05-04T00:00: 00.000
   • C5/4/14T00:00:00.000
   • DAn exception is thrown at runtime.

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   Answer: D

   Explanation

   Answer is D. Source code throws "Exception in thread "main" java.time.temporal.UnsupportedTemporalTypeException: Unsupported field: HourOfDay" To test: Remember: import java.time.LocalDate; import java.time.format.DateTimeFormatter; public static void main(String[] args) { String date = LocalDate .parse("2014-05-04") .format(DateTimeFormatter.ISO_DATE_TIME); System.out.println(date); }

   Source: Adapted from community discussion — carloswork

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2. Question 142 · 200 in bank

   Given the code fragment:

   

   What is the result?

   • AA B C Work done
   • BA B C D Work done
   • CA Work done
   • DCompilation fails

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   Answer: C

   Explanation

   Antwort C ist richtig , public static void main(String[] args) { String [] arr = {"A", "B" , "c", "D"}; for (int i = 0; i < arr.length; i++) { System.out.println(arr[i] + " "); if (arr[i].equals("C")) { continue; } System.out.println("Work done"); break; } } } A Work done

   Source: Adapted from community discussion — dya45792

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3. Question 143 · 200 in bank

   Select 3

   Which three are advantages of the Java exception mechanism? (Choose three.)

   • AImproves the program structure because the error handling code is separated from the normal program function
   • BProvides a set of standard exceptions that covers all possible errors
   • CImproves the program structure because the programmer can choose where to handle exceptions
   • DImproves the program structure because exceptions must be handled in the method in which they occurred
   • EAllows the creation of new exceptions that are customized to the particular program being created

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   Answer: ACE

   Explanation

   Because D says "MUST be handled in the method in which they occurred" Which is not true. You can throw the exception from that method using throws in the method signature and handle it in the calling method.

   Source: Adapted from community discussion — Ankit1010

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4. Question 144 · 200 in bank

   Given the code from the Greeting.Java file:

   

   Which set of commands prints Hello Duke in the console?

   

   • AOption A
   • BOption B
   • COption C
   • DOption D

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   Answer: C

   Explanation

   The answer is the letter C, there is not much to say, here is the explanation of the commands: javac Greeting.java ---> To compile the program java Greeting Duke ---> To run the program with argument "Duke"

   Source: Adapted from community discussion — iSnover

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5. Question 145 · 200 in bank

   Given:

   

   And:

   

   What is the result?

   

   • AOption A
   • BOption B
   • COption C
   • DOption D

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   Answer: A

   Explanation

   Hi, Emi! So, first we have: instance variable ns = 0 and static variable s = 0 When we call the constructor, we will have: Alpha (100): if (s < ns) then s = ns and this.ns = ns so: if (0 <100) then s = 100 and this.ns = 100 Alpha(50): now s = 100 because is static (updated above) if (100 < 50) which is false. ns = 0 because the instance variable is 0. Alpha(125): At this point, s = 100 if (100 < 125) then s = 125 and ns = 125. So here s is updated! At this point, when we call System.out.println(), for all ref1, ref2, ref3 the value of s is 125 (remember s is static). For ref1, ns = 100, for ref2 ns = 0, and for ref3 ns = 125. I hope this helps you :) Roxy

   Source: Adapted from community discussion — RoxyFoxy

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6. Question 146 · 200 in bank

   Given the code fragment:

   

   What is the result?

   • A2 4
   • B0 2 4 6
   • C0 2 4
   • DCompilation fails

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   Answer: C

   Explanation

   antwort C , public static void main(String[] args) { int ii = 0; int jj = 7; for (ii = 0; ii < jj - 1; ii = ii + 2) { System.out.println(ii + " "); } } } 0 2 4

   Source: Adapted from community discussion — dya45792

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7. Question 147 · 200 in bank

   Given the code fragment:

   

   Which code fragment, when inserted at line 9, enables the code to print true?

   • AString str2 = str1;
   • BString str2 = new String(str1);
   • CString str2 = sb1. toString();
   • DString str2 = "Duke";

   Show answer

   Answer: A

   Explanation

   The answer is letter A, even the string containing the content inside them as they are not considered equal, to "circumvent" this, we must instantiate the second String taking the first as a reference as "str2 = str1;" and with that we can print true with the boolean "str2 == str1".

   Source: Adapted from community discussion — iSnover

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8. Question 148 · 200 in bank

   Given:

   

   What is the result?

   • ACompilation fails.
   • Bfalse true
   • Ctrue false
   • Dtrue true
   • Efalse false

   Show answer

   Answer: B

   Explanation

   public class Test { public static void main(String[] args) { Test ts = new Test(); System.out.println(isAvailable + " "); isAvailable = ts.doStuff(); System.out.println(isAvailable); } public static boolean doStuff() { return !isAvailable; } static boolean isAvailable = false; }

   Source: Adapted from community discussion — odzio33

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9. Question 149 · 200 in bank

   Select 2

   Given the code fragment:

   

   And given the requirements: ✑ If the value of the qty variable is greater than or equal to 90, discount = 0.5 ✑ If the value of the qty variable is between 80 and 90, discount = 0.2 Which two code fragments can be independently placed at line n1 to meet the requirements? (Choose two.)

   

   • AOption A
   • BOption B
   • COption C
   • DOption D
   • EOption E

   Show answer

   Answer: AC

   Explanation

   A and C are the correct options because in Option B we are using the discount variable twice, and thus only the second discount's value will be the final updated value in Option D only the case where qty >= 90 will work in Option E everytime the output printed will be 0.2 no matter if the condition is 1st or 2nd.

   Source: Adapted from community discussion — kkaayyyy

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10. Question 150 · 200 in bank

    Given:

    

    And given the commands:

    

    What is the result?

    • ASuccess
    • BFailure
    • CCompilation fails.
    • DAn exception is thrown at runtime

    Show answer

    Answer: A

    Explanation

    A. Success is the right answer. When we compare the content of args[0] with "Hello" we satisfy the first IF condition - SUCCESS

    Source: Adapted from community discussion — kkaayyyy

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1Z0-808 practice, question 141. 200 questions available.