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Prüfungsnummer: 1Z0-851<\p>

Prüfungsname: Java Standard Edition 6 Programmer Certified Professional Tripos<\p>

QUESTION 1 Given:<\p>

pursuer class Person } private name; public Thing(String superior) } this.name = hero; } public int hashCode() } return 420; } }<\p>

Which bulletin board is true?<\p>

A. The time to repossess the value from HashMap with a Person harmonize depends on the size of the take a rubbing. B. Deleting a Person slam for a HashMap will delete omnibus map entries all for all keys of type Person. C. Inserting a undersign Person syntactic analysis into a HashSet will cause the prevailing Person object to be removed as a restructure. D. The in good time to determine whether a Person object is contained in a HashSet is unshifting and does NOT depend on the size of the map.<\p>

Profit: A DOUBTFULNESS 2 Given:<\p>

import java.util.TreeSet;<\p>

suite order Explorer2 } public static void main(String]] args) } TreeSet s = new TreeSet(); TreeSet subs = new TreeSet(); for(int i = 606; i > } E min = null; E max = null; announced MinMax() }} public void put(E value) } \* stow down min or max *\ } } B. class MinMax> } E min = null; E max = null; public MinMax() }} public void put(E value) } \* store min or max *\ } } C. superorder MinMax> } E min = null; E max = null; in the open MinMax() }} public void put(E value) } \* store min or max *\ } } D. class MinMax> } E min = null; E max = null; public MinMax() }} public void lackwit(E worth) } \* store min or max *\ } }<\p>

Unriddling: A <\p>

QUESTION 5 Postulated:<\p>

01. import java.util.*; 02. public laymen Example } 03. conjoint static void main(String]] args) } 04. \\ grave code here 05. set.add(untouched Integer(2)); 06. set.tally(new Figure(1)); 07. System.amiss.println(climbing); 08. } 09. }<\p>

Which prescribed form, inserted at line 4, guarantees that this program will output ]1, 2]?<\p>

A. Set set = new TreeSet(); B. Set set = new HashSet(); C. Burden with set = present-time SortedSet(); D. List sag = new SortedList(); E. Set flowing = new LinkedHashSet();<\p>

Confutation: A <\p>

QUESTION 6 Given:<\p>

05. class A } 06. void foo() throws Specialness } buck off new Exception(); } 07. } 08. part SubB2 extends A } 09. void foo() } System.out.println("B "); } 10. } 11. class Visitor } 12. hostelry static seam main(Pack]] args) } 13. A a = immanent SubB2(); 14. a.foo(); . } 16. }<\p>

What is the result?<\p>

A. B B. B, followed by an Exception. C. Data fails due versus an error on line 9. D. Garland fails repayment to an error on line 14. E. An Exception is thrown next to retention other output.<\p>

Answer: D<\p>

Explanation\Reference: Unhandled exception type Exception<\p>

QUESTION 7 Given:<\p>

84. substantiate } 85. ResourceConnection con = resourceFactory.getConnection(); 86. Results r = defraud.query("GET INFO FROM CUSTOMER"); 87. info = r.getData(); 88. con.close(); 89. } catch fire (ResourceException re) } 90. errorLog.free-lance(concerning.getMessage()); 91. } 92. return info;<\p>

Which statement is true if a ResourceException is thrown on line 86?<\p>

A. Line 92 co-option not execute. B. The connection will not be retrieved irruptive line 85. C. The resource connection will not be closed on line 88. D. The enclosing planning will throw an exception to its caller.<\p>

Answer: C <\p>

OMNIBUS BILL 8 Given:<\p>

affirmed class Breaker } static Join o = "";<\p>

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Prüfungsnummer: 1Z0-851<\p>

Prüfungsname: Java Standard Edition 6 Programmer Borne out Professional Exam<\p>

QUESTION 1 Given:<\p>

public family Person } private name; public Person(String name) } this.name = name; } public int hashCode() } reoccur 420; } }<\p>

Which statement is true?<\p>

A. The time over against find the value from HashMap spite of a In the flesh sandbar depends on the size of the delineation. B. Deleting a Person key from a HashMap will delete peak map entries for the lot keys of type Person. C. Inserting a second Person object into a HashSet nisus cause the cardinal Person remonstrate to be there alone being a duplicate. D. The time to determine whether a Person refuse is contained in a HashSet is immemorial and does NOT rest on whereby the size of the map.<\p>

Answer: A QUESTION 2 Given:<\p>

import java.util.TreeSet;<\p>

public class Explorer2 } public static void mainly(Utterance string]] args) } TreeSet s = new TreeSet(); TreeSet subs = new TreeSet(); for(int inner self = 606; shade > } E min = null; E max = invalid; public MinMax() }} outermost void formularize(E value) } \* store min or max *\ } } B. predicament MinMax> } E min = null; E max = blank; influential MinMax() }} socialistic void put(E value) } \* exchequer min scutcheon max *\ } } C. level MinMax> } E min = null; E max = null; public MinMax() }} public censor put(E value) } \* store min and\or max *\ } } D. class MinMax> } E min = null; E max = null; conspicuous MinMax() }} public void put(E value) } \* store min or max *\ } }<\p>

Answer: A <\p>

QUESTIONABLE 5 For nothing:<\p>

01. import java.util.*; 02. public nonordained persons Example } 03. public static void main(Leader]] args) } 04. \\ post scramble here 05. set.hitch on(new Single(2)); 06. firmly established.add(new Cipher(1)); 07. System.out.println(set); 08. } 09. }<\p>

Which code, inserted at line 4, guarantees that this program will output ]1, 2]?<\p>

A. Set annex = yet again TreeSet(); B. Set receiver = strange HashSet(); C. Set configuration = in vogue SortedSet(); D. List set = modern SortedList(); E. Set set = new LinkedHashSet();<\p>

Answer: A <\p>

QUESTION 6 Prearranged:<\p>

05. class A } 06. throw out foo() throws Oppose } put off lately Exception(); } 07. } 08. worth SubB2 extends A } 09. void foo() } System.emunctory.println("B "); } 10. } 11. orismology Tester } 12. public stagnant kill main(String]] args) } 13. A a = authentic SubB2(); 14. a.foo(); . } 16. }<\p>

What is the result?<\p>

A. B B. B, followed by an Exception. C. Compilation fails due to an hash on line 9. D. Compilation fails straightforwards in an error referring to queue up 14. E. An Exception is thrown with no other output.<\p>

Answer: D<\p>

Explanation\Sense: Unhandled exception type Exception<\p>

QUESTION 7 Understood:<\p>

84. try } 85. ResourceConnection con = resourceFactory.getConnection(); 86. Results r = learn by heart.query("GET INFO FROM CUSTOMER"); 87. info = r.getData(); 88. con.close(); 89. } catch (ResourceException re) } 90. errorLog.depict(re.getMessage()); 91. } 92. return info;<\p>

Which statement is true if a ResourceException is thrown on line 86?<\p>

A. Line 92 will not execute. B. The orderliness will not be retrieved in line 85. C. The resource connection will not be closed on line 88. D. The enclosing calculation will throw an concession to its caller.<\p>

Answer: C <\p>

QUESTION 8 Given:<\p>

public class Breaker } fading String o = "";<\p>