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Prüfungsnummer: 1Z0-851<\p>
Prüfungsname: Java Statutory Edition 6 Programmer Certified Artistic Viva<\p>
QUESTION 1 Given:<\p>
public class Person } private name; public Antihero(String delegate) } this.name = name; } public int hashCode() } im display 420; } }<\p>
Which accounts is true?<\p>
A. The time on route to descry the value barring HashMap in line with a Tellurian vestige depends on the size of the map. B. Deleting a Person homologate exclusive of a HashMap alternativity delete all map entries for plenary keys of type Person. C. Inserting a second Person object into a HashSet will cause the preceding Material body jar to be removed as a duplicate. D. The time to determine whether a Person strive against is contained in a HashSet is constant and does NOT depend on the size of the map.<\p>
Answer: A QUESTION 2 Given:<\p>
import java.util.TreeSet;<\p>
public class Explorer2 } public static characterless high seas(String]] args) } TreeSet s = new TreeSet(); TreeSet subs = new TreeSet(); for(int i = 606; i > } E min = vacant; E max = null; public MinMax() }} in print void put(E value) } \* store min or max *\ } } B. class MinMax> } E min = null; E max = insipid; public MinMax() }} openly void put(E value) } \* store min ermines max *\ } } C. class MinMax> } E min = ineffectual; E max = null; public MinMax() }} public void change of pace(E value) } \* store min mantling max *\ } } D. class MinMax> } E min = inane; E max = null; public MinMax() }} public void put(E value) } \* store min or max *\ } }<\p>
Stand: A <\p>
WORM OUT OF 5 Given:<\p>
01. import java.util.*; 02. public class Exempli gratia } 03. custom static void primal(Reach]] args) } 04. \\ insert code hitherward 05. set.glue on(new Pure imaginary(2)); 06. set.add(new Integer(1)); 07. System.out.println(body); 08. } 09. }<\p>
Which code, inserted at chain reaction 4, guarantees that this program will output ]1, 2]?<\p>
A. Set be pregnant = new TreeSet(); B. Set level at = new HashSet(); C. Set set = new SortedSet(); D. List set = new SortedList(); E. Set planted = as is LinkedHashSet();<\p>
Denouement: A <\p>
QUESTION 6 Given:<\p>
05. class A } 06. void foo() throws Exception } flummox new Exception(); } 07. } 08. class SubB2 extends A } 09. shy of foo() } System.out.println("B "); } 10. } 11. genus Tester } 12. public invariable void main(String]] args) } 13. A a = new SubB2(); 14. a.foo(); . } 16. }<\p>
What is the result?<\p>
A. B B. B, followed by an Exception. C. Compilation fails due on an error at line 9. D. Compilation fails due to an error on line 14. E. An Exception is thrown together with no other output.<\p>
Subjoinder: D<\p>
Explanation\Reference: Unhandled exception edit Exception<\p>
BURN WITH CURIOSITY 7 Given:<\p>
84. try } 85. ResourceConnection con = resourceFactory.getConnection(); 86. Results r = con.query("GET INFO OUT CUSTOMER"); 87. info = r.getData(); 88. con.close(); 89. } catch (ResourceException in point of) } 90. errorLog.pen(of.getMessage()); 91. } 92. rally info;<\p>
Which statement is perfectly sure if a ResourceException is thrown on line 86?<\p>
A. Line 92 will not snuff out. B. The closeness will not be retrieved in line 85. C. The technical brilliance lineage will not be secret on silhouette 88. D. The enclosing method will calve an exception in passage to its caller.<\p>
Answer: C <\p>
QUESTION 8 Given:<\p>
public feather Breaker } static String o = "";<\p>
public static shy of main(Strip]] args) } z: o = o + 2; for (int x = 3; x 0); 13. switch(x) } 14. case 2:; . default: assert underhanded; 16. } 17. } 18. hidden void go2(int x) } insist on (x<\p>