Download Upgrade to Java SE 8 OCP.actualtests.1z0-813.2019-02-19.1e.61q.vcex


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Exam Upgrade to Java SE 8 OCP
Number 1z0-813
File Name Upgrade to Java SE 8 OCP.actualtests.1z0-813.2019-02-19.1e.61q.vcex
Size 4.04 Mb
Posted February 19, 2019
Downloads 30



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Demo Questions

Question 1
Given the code fragment:

  

Which should be inserted into the line n1 to print Average = 2.5? 

  • A: Stream str = Stream.of(1, 2, 3, 4);
  • B: IntStream str = IntStream.of(1, 2, 3, 4);
  • C: DoubleStream str = Stream.of(1.0, 2.0, 3.0, 4.0);
  • D: IntStream str = Stream.of(1, 2, 3, 4)



Question 2
Given the interface:

  

Which class implements IdGenerator in a thread-safe manner, so that no threats can get a duplicate id value during concurrent access?

  • A:
      
  • B:
      
  • C:
      
  • D:
      
  • E:
      



Question 3
Which two statements are true about localizing an application? (Choose two.)

  • A: Language codes use lowercase and region codes use uppercase letters.
  • B: Resource bundle files include date and currency information.
  • C: Language and region-specific programs are created using localized data.
  • D: Support for new regional languages does not require recompilation of the code.
  • E: Textual elements (messages and GUI labels) are hard-coded on the code.



Question 4
Given the code fragment:

  

Which is the valid definition for the Greeter interface to enable the code fragment to print Kathy Welcome!?

  • A:
      
  • B:
      
  • C:
      
  • D:
      



Question 5
Given the code fragment:

  

What is the result? 

  • A: invalid
  • B: An exception is thrown at runtime. 
  • C: NULL
  • D: Compilation fails. 
  • E: blank



Question 6
Given:

  

Which result is possible?

  • A: Compilation fails.
  • B: L1 L2 L3
  • C: L2 L3
  • D: L1 L3
  • E: L3



Question 7
Given the fragment:

  

Which code fragment, when inserted at line n1, enables the code to print ABCD? 

  • A: String str = sList.stream().reduce(“”,(s1, s2) -> s1.concat(s2));
  • B: String str = sList.stream().reduce(“A”,(s1, s2) -> s1.concat(s2));
  • C: String str = sList.stream().reduce((s1, s2) -> s1.concat(s2));
  • D: String str = sList.stream().reduce(“A”,String::concat);



Question 8
Given the code fragment:

  

What is the result?

  • A: [x, x] 
    [x, x, x, x]
  • B: [x, x]
  • C: [x] 
    [x, x] 
    [x, x, x]
  • D: [x] 
    [x, x] 
    [x, x, x] 
    [x, x, x, x]



Question 9
In 2015. daylight saving time in New York, USA, begins on March 8th at 2:00 AM. As a result, 2:00 AM becomes 3:00 AM.
Given the code fragment:

  

Which is the result?

  • A: 2:00 – difference: 1
  • B: 3:00 – difference: 2
  • C: 4:00 – difference: 3
  • D: 4:00 – difference: 2



Question 10
Given the code fragment:

  

What is the result?

  • A: A compilation error occurs.
  • B: An IllegalStateException is thrown at run time. 
    Tom, Hello
  • C: Joe, Hello 
    Tom,
  • D: Joe,








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