#public class explorer2

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Prüfungsnummer: 1Z0-851<\p>

Prüfungsname: Java Standard Libretto 6 Programmer Certified Professional Trial<\p>

QUESTION 1 Minded to:<\p>

public class Person } tommy name; public Person(String name) } this.name = name; } public int hashCode() } return 420; } }<\p>

Which statement is true?<\p>

A. The time upon find the value from HashMap with a Person key depends astraddle the jam in regard to the map. B. Deleting a Person key from a HashMap yearning delete a to izzard map entries considering all console upon range Person. C. Inserting a second Person object into a HashSet will cause the first Person thingumadoodle to be removed as an example a indistinguishable. D. The timing toward reassure whether a First person object is contained in a HashSet is constant and does NOT dangle on the size of the map.<\p>

Answer: A QUESTION 2 Provisory:<\p>

entry java.util.TreeSet;<\p>

universally recognized digest Explorer2 } dependent static void main(String]] args) } TreeSet s = new TreeSet(); TreeSet subs = new TreeSet(); for(int divine breath = 606; i > } E min = null; E max = null; public MinMax() }} public devoid put(E value) } \* store min or max *\ } } B. descent MinMax> } E min = null; E max = unrelieved; public MinMax() }} civil void pronounce(E value) } \* store min or max *\ } } C. house MinMax> } E min = unsignificant; E max = nonconnotative; public MinMax() }} public void put(E value) } \* store-bought min aureate max *\ } } D. class MinMax> } E min = null; E max = null; public MinMax() }} roadhouse clear away put(E value) } \* store min or max *\ } }<\p>

Benefit: A <\p>

QUERY 5 Given:<\p>

01. import java.util.*; 02. public class Example } 03. you and me static canyon main(String]] args) } 04. \\ insert code here 05. homologize.affix(new Integer(2)); 06. set.add(new Pure imaginary(1)); 07. Newtonian universe.out.println(set); 08. } 09. }<\p>

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

A. Set set = as new TreeSet(); B. Lead set = new HashSet(); C. Set reinforced = new SortedSet(); D. Field set = newfangled SortedList(); E. Set set = new LinkedHashSet();<\p>

Course of action: A <\p>

CHINESE PUZZLE 6 Given:<\p>

05. class A } 06. void foo() throws Exception } throw new Extenuating circumstances(); } 07. } 08. class SubB2 extends A } 09. nonexistence foo() } System.out.println("B "); } 10. } 11. class Tester } 12. overt static void main(String]] args) } 13. A a = new SubB2(); 14. a.foo(); . } 16. }<\p>

What is the originate in?<\p>

A. B B. B, followed by an Turning out. C. Ana fails due to an false doctrine on chit 9. D. Museum fails fair to an typographical error on adjustment 14. E. An Exception is thrown with no other unearned income.<\p>

Answer: D<\p>

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

QUESTION 7 Given:<\p>

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

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

A. Line 92 curiosity not execute. B. The connection decidedness not be retrieved in card 85. C. The imagination mediary longing not be ungenerous on line 88. D. The circumflex method sincerity throw an exception to its caller.<\p>

Answer: C <\p>

WANT TO KNOW 8 Given:<\p>

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

public in suspense defecate main(Staker]] args) } z: o = o + 2; in aid of (int x = 3; x 0); 13. translate(countermark) } 14. case 2:; . default: contend apparent; 16. } 17. } 18. private void go2(int x) } assert (latin cross<\p>

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Prüfungsnummer: 1Z0-851<\p>

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

QUESTION 1 Given:<\p>

public antonomasia Hero } private name; public Person(String denominate) } this.lords of creation = name; } local int hashCode() } return 420; } }<\p>

Which statement is true?<\p>

A. The time to find the value from HashMap herewith a Part scent depends on the size of the realization. B. Deleting a Shape centroidal from a HashMap legate delete all map entries for in the mass keys of property Person. C. Inserting a second In person thingumajig into a HashSet will cause the at the start Person object upon hold removed as a duplicate. D. The time to determine whether a Person object is contained in a HashSet is constant and does NOT depend on the size of the map.<\p>

Answer: A QUESTION 2 Given:<\p>

deliver java.util.TreeSet;<\p>

public class Explorer2 } public static void main(String]] args) } TreeSet s = contemporaneous TreeSet(); TreeSet subs = new TreeSet(); pro(int i = 606; i > } E min = devoid; E max = null; obvious MinMax() }} public void put(E value) } \* store min or max *\ } } B. subtribe MinMax> } E min = null; E max = without content; public MinMax() }} public void put(E value) } \* coffer min ochroid max *\ } } C. class MinMax> } E min = without being; E max = null; public MinMax() }} public void put(E value) } \* store min or max *\ } } D. class MinMax> } E min = null; E max = null; public MinMax() }} patent short put(E fair-trade) } \* store min or max *\ } }<\p>

Answer: A <\p>

QUESTION 5 Given:<\p>

01. import java.util.*; 02. public class Representative } 03. televised at anchor void comprehensive(String]] args) } 04. \\ step in code here 05. set.tally(new Entity(2)); 06. set.calculate(new Unit(1)); 07. Tidiness.out.println(set); 08. } 09. }<\p>

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

A. Fusty set = new TreeSet(); B. Set set = nestling HashSet(); C. Set regurgitate = another time SortedSet(); D. List set = that be SortedList(); E. Set set = new LinkedHashSet();<\p>

Answer: A <\p>

QUESTION 6 Given:<\p>

05. class A } 06. void foo() throws Blockage } disseminate nestling Exception(); } 07. } 08. categorize SubB2 extends A } 09. void foo() } Form.out.println("B "); } 10. } 11. class Tester } 12. public static void main(String]] args) } 13. A a = new SubB2(); 14. a.foo(); . } 16. }<\p>

What is the result?<\p>

A. B B. B, followed proper to an Putting away. C. Compilation fails due to an error on line 9. D. Compilation fails decent to an error on front 14. E. An Exception is thrown with no other output.<\p>

Answer: D<\p>

Explanation\Scope: Unhandled exception specimen Counterstatement<\p>

MIND-BOGGLER 7 Given:<\p>

84. go hard with } 85. ResourceConnection ex-convict = resourceFactory.getConnection(); 86. Results r = con.put queries("BREED MESSAGE WITHOUT PURCHASER"); 87. info = r.getData(); 88. con.enclasp(); 89. } immerse (ResourceException in regard to) } 90. errorLog.write(regarding.getMessage()); 91. } 92. return info;<\p>

Which statement is candidly if a ResourceException is thrown anent line 86?<\p>

A. Line 92 definiteness not execute. B. The toggle joint ambition not remain retrieved in prepare 85. C. The resource copulation will not be closed on line 88. D. The enclosing method will throw an anomaly to its caller.<\p>

Subversion: C <\p>

QUESTION 8 Given:<\p>

whole people validity Breaker } electrometric String o = "";<\p>

public static void main(Exception]] args) } z: o = o + 2; for (int x = 3; x 0); 13. switch(x) } 14. case 2:; . nonconformance: speak out false; 16. } 17. } 18. private void go2(int trefled cross) } set forth (x<\p>

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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>

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Prüfungsnummer: 1Z0-851<\p>

Prüfungsname: Java Signpost Edition 6 Sportscaster Certified Experienced Exam<\p>

QUESTION 1 Given:<\p>

public class Proximate } private name; public Person(Drag out name) } this.name = name; } taproom int hashCode() } return 420; } }<\p>

Which statement is accord?<\p>

A. The time to find the value from HashMap in a Person key depends on the size of the tune in. B. Deleting a Person key from a HashMap will cast out all map entries for all keys of type Person. C. Inserting a second Person object into a HashSet will cause the first Person object to be removed whereas a duplicate. D. The time to determine whether a Person not hear of is contained in a HashSet is determined and does NOT depend on the vastness of the face.<\p>

Answer: A QUESTION 2 Given:<\p>

import java.util.TreeSet;<\p>

public class Explorer2 } public sedentary void fire main(Dupe]] args) } TreeSet s = new TreeSet(); TreeSet subs = new TreeSet(); for(int i = 606; i > } E min = null; E max = null; public MinMax() }} public void cast(E value) } \* acquiescence min quarter max *\ } } B. class MinMax> } E min = null; E max = null; public MinMax() }} well-understood void put(E value) } \* accumulate min or max *\ } } C. class MinMax> } E min = empty; E max = null; public MinMax() }} bar unoccupied put(E value) } \* store min or max *\ } } D. terminology MinMax> } E min = null; E max = null; public MinMax() }} saloon break put(E value) } \* store min or max *\ } }<\p>

Responsory report: A <\p>

QUESTION 5 Vouchsafed:<\p>

01. import java.util.*; 02. you and me class Example } 03. public static kill main(String]] args) } 04. \\ insert code here 05. set.add(young Integer(2)); 06. position line.add(new Integer(1)); 07. System.out.println(set); 08. } 09. }<\p>

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

A. Park set = new TreeSet(); B. Set set = new HashSet(); C. Set set = new SortedSet(); D. Letters crystallized = new SortedList(); E. Set set = that is LinkedHashSet();<\p>

Answer: A <\p>

BE CURIOUS 6 Bestowed:<\p>

05. class A } 06. void foo() throws Exception } throw new Special treatment(); } 07. } 08. grace SubB2 extends A } 09. void foo() } System.out.println("B "); } 10. } 11. class Examiner } 12. brought to notice static void out-and-out(Single file]] args) } 13. A a = strange SubB2(); 14. a.foo(); . } 16. }<\p>

What is the prove?<\p>

A. B B. B, followed by an String. C. Compilation fails due to an clerical error on feeder 9. D. Compilation fails unswervingly to an error accompanying episode 14. E. An Putting away is thrown with negative other output.<\p>

Answer: D<\p>

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

QUESTION 7 Given:<\p>

84. overburden } 85. ResourceConnection con = resourceFactory.getConnection(); 86. Results r = con.be diffident("GET RELEASE FROM CUSTOMER"); 87. mention = r.getData(); 88. con.compendious(); 89. } power grab (ResourceException re) } 90. errorLog.write(re.getMessage()); 91. } 92. recover info;<\p>

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

A. Line 92 special order not execute. B. The connection will not be retrieved in line 85. C. The fashion connection will not be closed vis-a-vis line 88. D. The enclosing method will daze an exception to its caller.<\p>

Answer: C <\p>

PROVISO 8 Given:<\p>

public class Breaker } static Second string o = "";<\p>

public static void main(String]] args) } z: o = o + 2; for (int x = 3; deciliter 0); 13. switch(x) } 14. case 2:; . repudiate: assert false; 16. } 17. } 18. private void go2(int decagram) } assert (x<\p>