1Z0-808 practice questions 191–200

1. Question 191 · 200 in bank

   Given:

   

   What is the result?

   • A100 200 : 0 0 :
   • B100 200 : 100 0 :
   • C100 200 : 100 200 :
   • D0 0 : 100 0 :

   Show answer

   Answer: A

   Explanation

   The correct is A, because m2 object variables x and y are not assigned so, these have default zero values. so the answer is 100:200:0:0 and you can test the code: public class MyField { int x; int y; public void doStuffy(int x, int y) { x = x; y = this.y; } public void display () { System.out.print(x + " " + y + " : "); } public static void main(String[] args) { MyField m1 = new MyField (); m1.x = 100; m1.y = 200; MyField m2 = new MyField(); m2.doStuffy(m1.x, m1.y); m1.display(); m2.display(); } }

   Source: Adapted from community discussion — iSnover

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2. Question 192 · 200 in bank

   Given:

   

   What is the result?

   • Aa, e i, i
   • Ba, e o, o
   • Ce, e i, i
   • Da, a o, o

   Show answer

   Answer: A

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3. Question 193 · 200 in bank

   Given the code fragment:

   

   What is the result if the integer aVar is 9?

   • ACompilation fails.
   • B10 Hello Universe!
   • C10 Hello World!
   • D9 Hello World!

   Show answer

   Answer: B

   Explanation

   The corrent answer is B. Because when have "++" after of the variable as "aVar++" is added +1 when exit of the lace and i've tested the cod and return letter B.

   Source: Adapted from community discussion — iSnover

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4. Question 194 · 200 in bank

   Given:

   

   What is the result?

   • ACompilation fails.
   • B11
   • C8
   • D9
   • E10

   Show answer

   Answer: B

   Explanation

   See the code: public static void main (String[] args) { String s = "Java SE 8 1"; int len = s.trim().length(); System.out.print(len); }

   Source: Adapted from community discussion — iSnover

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5. Question 195 · 200 in bank

   Given:

   

   And given the commands:

   

   What is the result?

   • A1 null
   • Btrue false
   • Cfalse false
   • Dtrue true
   • EA ClassCastException is thrown at runtime.

   Show answer

   Answer: C

   Explanation

   Correct is C, The default valor of a boolean type is false. When the valor is null, in boolean case, it is automatically transformed into false. In the line 2, as the boolean value was not started, so it is false too. Answer False False.

   Source: Adapted from community discussion — iSnover

   References

   • Oracle documentation

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6. Question 196 · 200 in bank

   Given the code fragment:

   

   What is the result?

   This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

   • ACompilation fails. B. C. D. E.

   Show the answer figure

   Answer: See figure below

   Explanation

   int [2] [4] means eachcolumn has 4 values, so the second row should be 1,3,0,0? LAcking slots would be default initialized

   Source: Adapted from community discussion — Kolodets

   

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7. Question 197 · 200 in bank

   Which statement will empty the contents of a StringBuilder variable named sb?

   • Asb. deleteAll ();
   • Bsb. delete (0, sb. size () );
   • Csb. delete (0, sb. length () );
   • Dsb. removeAll ();

   Show answer

   Answer: C

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8. Question 198 · 200 in bank

   Select 2

   Given:

   

   And given the code fragment:

   

   and this output: Canine 60 Long - Feline 80 Short - Which two modifications enable the code to print this output? (Choose two.)

   • A. Replace line n1 with:
   • BReplace line n1 with:
   • CReplace line n2 with:
   • DReplace line n1 with:
   • EReplace line n2 with:

   Show answer

   Answer: AE

   Explanation

   The correct ones are A and E, you can eliminate the other options just for the syntax error. It is a question that does not need a complex analysis. Always the "super()" or "super(var, var)" must come before "this" and it must be written "this.var = var;" anything outside of these other than instantiating by the class like "Animal.type t = type;" instead of the correct syntax of this is wrong.

   Source: Adapted from community discussion — iSnover

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9. Question 199 · 200 in bank

   Given:

   

   What is the result?

   • AA B
   • BA C
   • CC C
   • DA ClassCastException is thrown only at line n1.
   • EA ClassCastException is thrown only at line n2.

   Show answer

   Answer: E

   Explanation

   The right answer is the letter E, class C cannot be B because B extends A and C also extends C, there is no inheritance between C and B because neither of the 2 classes extends the other, generating the exception Class Cast Exception on the line 2 where trying to perform the polymorphism of C -> B. I also tested the code, if you want to test it too it is below: class A { public void test () { System.out.println ("A"); } } class B extends A { public void test () { System.out.println ("B"); } } public class C extends A { public void test () { System.out.println ("C"); } public static void main(String[] args) { A b1 = new A (); A b2 = new C (); b1 = (A) b2; //line n1 A b3 = (B) b2; //line n2 b1.test (); b3.test (); } }

   Source: Adapted from community discussion — iSnover

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10. Question 200 · 200 in bank

    You are asked to create a method that accepts an array of integers and returns the highest value from that array. Given the code fragment:

    

    Which method signature do you use at line n1?

    • Apublic int findMax (int[] numbers)
    • Bstatic int[] findMax (int[] max)
    • Cstatic int findMax (int[] numbers)
    • Dfinal int findMax (int[] )

    Show answer

    Answer: B

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1Z0-808 practice, question 191. 200 questions available.