#void foo

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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>