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2013·2015 Oracle Academy English Java Fundamentals- Student
Outline
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0 . ?
Outline
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X Review your answers, feedback, and question scores below. An aste1isk (*) indicates a correct answer.
EJ···() 2013·201 5 Oracle kademy Em:ll' 1!1···
e Section 0 · Cou1.,. Resources
8 ···• Section 1 ~ 'Welcome and lntlu.
Section 4 (Answer all questions in this section)
1. You need to - - - - - - J a v a code to generate a .class file
1!1···• Secbon 2 • tmng AliCe 3
1!1···0 Secbon ~ - Using Eclipse
Collect • Compile (*) Package Assemble
1!1···0 Secbon 5 • U5\ng Control State
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1!1···• Section 3 · Using Green foot 0 ··& Java Fundamentals Midterm [
1!1···0 Section 6 · l!singArra'}Sand
Correct
2. You can return to the Eclipse Welcome Page by choosing Welcome from what menu?
1!1···0 Section 7- Using Recursion,
0 ·· ·• Appendix P:. Self Study GUide V
0··0 Appendix P:. Self Study Guide V 0 ··0 Appendix P:. Self Study GuideS
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3. For eve1y opening curly brace { there does not need to be a closing curly brace} for the program to compile without error. True or False?
0··0 Appendix P:. Self Study Guide II 0 ··0 Appendix P:. Self Study Guide I '
True • False (*)
0 ···0 Appendix P:. Self Study Guide C
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4. A workspace can not have more than one stored projects. True or false?
0 ··0 Appendix P:. Self Study Guide I ' 0 ···0 Appendix P:. Self Study Guide II
True • False (*)
0 ··0 Appendix P:. Self Study GUide~
~
Mark for Review ( 1) Points
Correct
5. In the image below, identify the components.
1 2
3 4 5
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C01rect
0··0 Appendix P:. Self Study GuideS
0··0 Appendix P:. Self Study Guide C
for Review ( 1) Points
Correct
0 ···0 Appendix P:. Self Study GUide C
0 ··0 Appendix P:. Self Study GUide 1
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File Edit • Help (* ) Close
• 0 Java Ftmdamentats Fmal Exa
0 ···0 Appendix P:. Self Study Guide L
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/ ** * @par am args *I
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2013·2015 Oracle Academy English Java Fundamentals- Student
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Outline
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X
3. For eve1y opening curly brace { there does not need to be a closing curly brace} for the program to compile without error. T111e or False?
8 ···• Section 1 ~ 'Welcome and lntlu.
True • False (*)
1!1···• Secbon 2 • tmng Allee 3
~
•
•
1m •
Mark for Review ( 1) Points
0 ··& Java Fundamentals Midterm [
True • False (*)
1!1···0 Secbon ~ - Using Eclipse 1!1···0 Secbon 5 • U5\ng Control State
~
1!1···0 Section 6 · l!singArra'}Sand
Correct
5. In the image below, identify the components.
1!1···0 Section 7- Using Recursion,
?
--
C01rect
4. A workspace can not have more than one stored projects. True or false>
1!1···• Section 3 · Using Green foot
• ...
0
Mark for Review (1) Points
EJ···() 2013·2015 Oracle kademy Em:ll' 1!1···• Section 0 · Cou1.,. Resources
1: 34
• 0 Java Ftmdamentats Fmal Exa
1 2 3 4 5 6 7 8 9 10 11 12 13
0 ·· ·• Appendix P:. Self Study GUide V
0··0 Appendix P:. Self Study Guide V 0 ··0 Appendix P:. Self Study GuideS
0 ···0 Appendix P:. Self Study Guide L 0 ···0 Appendix P:. Self Study GUide C
0··0 Appendix P:. Self Study Guide II 0 ··0 Appendix P:. Self Study Guide I ' 0 ···0 Appendix P:. Self Study Guide C 0 ··0 Appendix P:. Self Study GUide 1
0··0 Appendix P:. Self Study GuideS 0 ··0 Appendix P:. Self Study Guide I ' 0 ···0 Appendix P:. Self Study Guide II
0 ··0 Appendix P:. Self Study GUide~ 0··0 Appendix P:. Self Study Guide C
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pac kage studyTool; ~ public c l as s Study Pa ge { / ** * @param args
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A-Main Method, B-Ciass, C-Package A-Class, B-MainMethod, C-Package • A-Package, B-Main ~tethod, C-Ciass (* ) None of the above ~
Page 1 of 10
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EJ···() 2013·201 5 Oracle kademy Em:ll'
Outline
Section 4 (Answer all questions in this section) 6. The following defines a class keyword:
1!1···• Section 3 · Using Green foot
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1!1···0 Section 7- Using Recursion, • 0 Java Ftmdamentats Fmal Exa
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0 · ·• Appendix P:. Self Study GUide V
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8. Select the declaration and initialization statement that will hold the letter J.
0 · ·0 Appendix P:. Self Study GUide C Appendix P:. Self Study Guide II
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0 ··0 Appendix P:. Self Study Guide I '
0 · ·0 Appendix P:. Self Study GUide 1 0··0 Appendix P:. Self Study Guide S 0 ··0 Appendix P:. Self Study Guide I '
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C01rect
9. What is the output of the following lines of code?
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int j=6,k=8,m=2,result; result=j-k%3* m; System .out. println( result); 6 0 -42 2 (* )
0 ···0 Appendix P:. Self Study Guide II
0 ··0
for Review ( 1) Points
int letter='J'; float letter='J'; String letter='J'; • char letter='J'; (* )
0 ···0 Appendix P:. Self Study Guide L
0 ···0 Appendix P:. Self Study Guide C
•
Correct
0 ··0 Appendix P:. Self Study Guide S
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1m -
• Contains a main method and other static methods. (*) Contains classes that define objects. Contains a main method, a package, static methods, and classes that define objects. None of the above.
1!1···0 Section 6 · Using Arrays and
Appendix P:. Self Study Guide V
•
•
Incorrect. Refer to Section 4 Lesson 2.
7. Which of the following defines a driver class>
1!1···0 Secbon 5 · U5\ng Control State
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Provides the compiler information that identifies outside classes used within the current class. Precedes the name of the class. (* )
1!1···• Secbon 2 . tmng Allee 3
1!1···0 Secbon ~ - Using Eclipse
0
o Defines where this class lives relative to other classes, and provides a level of access control.
8 ···• Section 1 ~ 'Welcome and lntlu.
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• ... 34
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1!1···e Section 0 · Cou1.,. Resources
0
1:
Appendix P:. Self Study GUide~
0··0 Appendix P:. Self Study Guide C
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C01rect
10. Which of the following instantiates a String named name to Oracle>
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St1ing name; St>i ng Oracle="name"; St1ing name="name"; o St>i ng name="Oracle"; (* )
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Outline
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0 ?
•
•
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1m -
Review your answers, feedback, and question scores below. An aste1isk (*) indicates a correct answer.
e Section 0 - CoUI' • True (*) False
0 .. 0 Appendix P:. Self Study Guide I' 0 ..·0 Appendix P:. Self Study Guide II
~
0 .. ·0 Appendix P:. Self Study GUide~ 0 .. ·0 Appendix P:. Self Study Guide C
Correct
13. The following code is an example of instantiating a String object: String str
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for Review ( 1) Points
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= String( "Hello" );
True or false> True • False (*)
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Correct
14. Given the code:
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String s = new String(" abc");
• ~~~~~~~~~~~~~~~~~~
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Outline
System.out.print l n ( "Equal" );
3 4
X
1!1···e Section 0 · Cou1.,. Resources 8 ···• Section 1 ~ 'Welcome and lntlu.
0 ?
•
•
--
1m •
System.out.print l n ( "Not Equal ");
True or false?
1!1···• Secbon 2 • tmng Allee 3 1!1···• Section 3 · Using Green foot
• True (*) False
0 ··& Java Fundamentals Midterm [
~
1!1···0 Secbon ~ - Using Eclipse
• ... 34
el s e
5 6
EJ···() 2013·201 5 Oracle kademy Em:ll'
Outline
1:
C01rect
13. The following code is an example of instantiating a String object:
1!1···0 Secbon 5 · U5\ng Control State
String str
Mark for Review ( 1) Points
= String( "Hello" );
1!1···0 Section 6 · Using Arrays and True or false?
1!1···0 Section 7- Using Recursion,
True • False (*)
• 0 Java Ftmdamentats Fmal Exa 0 · ·• Appendix P:. Self Study GUide V
0··0
0 ··0 Appendix P:. Self Study Guide S
0 ···0
~
Appendix P:. Self Study Guide V
14. Given the code:
Which of the following statements will change the length of s to the largest length?
Appendix P:. Self Study Guide II
s.trim() s.replace("a", "aa") s.substring(2) s.toUpperCase() • None of the above will change the length of s. (*)
0 ··0 Appendix P:. Self Study Guide I ' 0 ···0 Appendix P:. Self Study Guide C 0 · ·0 Appendix P:. Self Study GUide 1
0··0
Mark for Review ( 1) Points
String s = new String("abc");
Appendix P:. Self Study Guide L
0 · ·0 Appendix P:. Self Study GUide C
0··0
Con·ect
Appendix P:. Self Study Guide S
~
Con·ect
0 ··0 Appendix P:. Self Study Guide I ' 0 ···0 Appendix P:. Self Study Guide II
0 · ·0
Appendix P:. Self Study GUide~
0··0 Appendix P:. Self Study Guide C
Section 5 (Answer all Questions in this section)
15. Which of the following is true about a do-while loop?
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It is a post-test loop. It is a modified while loop that allows the program to run through the loop once before testing the boolean condition. • It continues looping until the condition becomes false. All of the above. (*)
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Incorrect. Refer to Section 5 Lesson 2.
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Outline
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EJ... () 2013-201 5 Oracle kademy Em:ll' I!J...
e Section 0 - CoUI'isk (*) indicates a correct answer. Section 5 (Answer all questions in this section) 16. All of the following are essential to initializing a for loop, except which one?
1!1..·0 Secbon ~ - tmng Eclipse
Initializing the iterator(i). Having a conditional statement. Updating the counter. • Having an if statement. (*)
1!1.. ·0 Secbon 5 - U5\ng Control State
~
I!J.... Section 3 - tmng Green foot
0 .. f) Java Fundamentals Midterm [
Mark for Review (1) Points
Correct
17. How many times will the following loop be executed> What is the value of x after the loop has finished? What is the value of count after the loop has finished?
1!1..·0 Section 7- tmng Recursion,
• ...
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I!J.... Secbon 2 - tmng Allee 3
1!1.. ·0 Section 6 - tmngArra'}5and
1: 34
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for Review ( 1) Points
• 0 Java Ftmdamentats Fmal Exa 0 .... Appendix P:. Self Study GUide V 0 .. ·0 Appendix P:. Self Study Guide V 0 .. 0 Appendix P:. Self Study GuideS 0 ..·0 Appendix P:. Self Study Guide L
int count= 17; int x = 1; while( count > x){ x*=3; count-=3; } 4; 8; 27 3; 27; 8 (*) 5; 27; 8
0 .. ·0 Appendix P:. Self Study GUide C 0 .. ·0 Appendix P:. Self Study Guide II 0 .. 0 Appendix P:. Self Study Guide I'
5; 30; 5
0 ..·0 Appendix P:. Self Study Guide C
3; 9; 11 ~
0 .. ·0 Appendix P:. Self Study GUide 1 0 .. ·0 Appendix P:. Self Study GuideS
C01rect
18. Which of the following are relational operators in Java?
Mark for Review ( 1) Points
0 .. 0 Appendix P:. Self Study Guide I' 0 ..·0 Appendix P:. Self Study Guide II
(Choose all correct answers)
., < (*) ., <= (*)
0 .. ·0 Appendix P:. Self Study GUide~ 0 .. ·0 Appendix P:. Self Study Guide C
., ! = (*)
All of the above. ~
Correct
19. The six relational operators in Java are:
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Outline
x* =3; count-=3; }
EJ... () 2013·2015 Oracle kademy Em:ll'
1!1·.. e Section 0 • Cou1.,. Resources 8 ···• Section 1 ~ 'Welcome and lntlu.
I!J.... Secbon 2 • tmng Al>ee 3 I!J.... Section 3 · tmng Green foot
0 .. f) Java Fundamentals Midterm [
4; • 3; 5; 5; 3;
8; 27 27; 8 (*) 27; 8 30; 5 9; 11
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18. Which of the following are relational operators in Java?
1!1..·0 Secbon ~ - tmng Eclipse
1:
• ... 34
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1!1.. ·0 Secbon 5 · U5\ng Control State (Choose all correct answers)
1!1.. ·0 Section 6 · tmngArra'}Sand
., < (*)
1!1·.. 0 Section 7- tmng Recursion,
., <= (*)
• 0 Java Ftmdamentats Fmal Exa 0 .... Appendix P:. Self Study GUide V
., ! = (*)
0 .. ·0 Appendix P:. Self Study Guide V
All of the above.
0 .. 0 Appendix P:. Self Study GuideS 0 ..·0 Appendix P:. Self Study Guide L
~
C01rect
19. The six relational operators in Java are:
Mark for Review ( 1) Points
0 .. ·0 Appendix P:. Self Study GUide C 0 .. ·0 Appendix P:. Self Study Guide II
>, <, =,~, < =,> =
0 .. 0 Appendix P:. Self Study Guide I'
• >, <, ==,!=, <=,> = (*) >, <, =,!=, <=,> = >, <, =,!=, =<, =>
0 ..·0 Appendix P:. Self Study Guide C 0 .. ·0 Appendix P:. Self Study GUide 1
~
0 .. ·0 Appendix P:. Self Study GuideS 0 .. 0 Appendix P:. Self Study Guide I'
Correct
20. The following prints Yes on the screen. True or false?
0 ..·0 Appendix P:. Self Study Guide II
1
String [] words={ "Yesn, 11 No"};
0 .. ·0 Appendix P:. Self Study GUide~
2 3 4
String s= (wo rds. length C >l 13:34 ' , ·~ v '=' . 16.05.2015
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2013·2015 Oracle Academy English Java Fundamentals- Student
Outline
><
0 .
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Outline
•
~~~ert ~:~Ja~v~a~F~u~l~ l d~~~~~~ ~~~l~s~f~il~l~ ~~ ~~--------------------------------------------------------------------------------------------------------------------- Review your answers, feedback, and question scores below. An aste>isk (*) indicates a correct answer.
EJ... () 2013-201 5 Oracle kademy Em:ll' I!J...
1~
e Section 0 - CoUI'
Mark for Review (1) Points
I!J.... Secbon 2 - tmng Allee 3
• True (*) False
I!J.... Section 3 - tmng Green foot
0 .. f) Java Fundamentals Midterm [
~
1!1..·0 Secbon ~ - tmng Eclipse 1!1.. ·0 Secbon 5 - U5\ng Control State
22. Which of the following best describes lexicographical order>
1!1.. ·0 Section 6 - tmngArra'}5and
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• 0 Java Ftmdamentats Fmal Exa 0 .... Appendix P:. Self Study GUide V
~
0 .. ·0 Appendix P:. Self Study Guide V
Correct
23. Binary searches can be pe>formed on sorted and unsorted data. True or false>
Mark for Review ( 1) Points
0 ..·0 Appendix P:. Self Study Guide L
True • False (*)
0 .. ·0 Appendix P:. Self Study GUide C 0 .. ·0 Appendix P:. Self Study Guide II
~
0 .. 0 Appendix P:. Self Study Guide I' 0 ..·0 Appendix P:. Self Study Guide C
C01rect
24. A sequntial search is an iteration through the a>ray that stops at the index where the desired element is found. True or false?
Mark for Review ( 1) Points
0 .. ·0 Appendix P:. Self Study GUide 1
• True (*) False
0 .. ·0 Appendix P:. Self Study GuideS 0 .. 0 Appendix P:. Self Study Guide I'
~
0 ..·0 Appendix P:. Self Study Guide II 0 .. ·0 Appendix P:. Self Study GUide~
for Review ( 1) Points
A simple so>ting algorithm that is inefficient on large a1rays. • An order based on the ASCII value of characters. (*) A complex sorting algorithm that is efficient on large a1rays. The order of indicies after an a1ray has been sorted.
1!1..·0 Section 7- tmng Recursion,
0 .. 0 Appendix P:. Self Study GuideS
Correct
Correct
25. Which of the following declares and initializes a one dimensional array named words of size 3 so that all entries can be Strings?
Mark for Review ( 1) Points
0 .. ·0 Appendix P:. Self Study Guide C
String strings=new String[ 3]; String[) word ={ "Over","the","mountain"}; (*) • String[) word =new String[ 3); String[) words={"Oracle","Academy"} );
G Previous
I
Incorrect. Refer to Section 6 Lesson 1.
Page 5 of 10
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• ... 34
0 ?
•
•
--
1m -
~~~ert ~:~Ja~v~a~F~u~l~ l d~~~~~~ ~~~l~s~f~il~l~ ~~ ~~------------------------------------------------------------------------------------------------------------------~
A
Review your answers, feedback, and question scores below. An aste1isk (*) indicates a correct answer.
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e Section 0 - CoUI'l 13:34 ' ·~ v '=' . 16.05.2015
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8 ···• Section 1 ~ 'Welcome and lntlu.
0
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Correct
28. Which of the following declares a one dimensional array name scores of type int that can hold 14 values?
··& Java Fundamentals Midterm [
Mark for Review ( 1) Points
int scores; int[] scores=new int[14]; (* ) int[] scores=new scores int[14]; int score= new int[14];
1!1···0 Secbon ~ - Using Eclipse 1!1···0 Secbon 5 · U5\ng Control State 1!1···0 Section 6 · Using Arrays and
~
1!1···0 Section 7- Using Recursion,
• 0 Java Ftmdamentats Fmal Exa
for Review ( 1) Points
• True (*) False
e Section 0 • Cou1.,. Resources
1!1···• Section 3 · Using Green foot
--
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double[)[] a=new double[ 4][5];
1!1···
1!1···• Secbon 2 . tmng Allee 3
0 .
Outline
27. The following segment of code initializes a 2 dimensional arrav of ptimitive data types. True or false?
EJ···() 2013·201 5 Oracle kademy Em:ll'
1~
C01rect
29. What is wrong with this code?
0 · ·• Appendix P:. Self Study GUide V
1
0··0 Appendix P:. Self Study Guide V
2 3 4 5 6 7
0 ··0 Appendix P:. Self Study Guide S 0 ···0 Appendix P:. Self Study Guide L 0 · ·0 Appendix P:. Self Study GUide C
0··0 Appendix P:. Self Study Guide II 0 ··0 Appendix P:. Self Study Guide I '
Mark for Review ( 1) Points
t r y{
i f (x < 0 ) t hr ow new Exception ("Your a nswer i s nega t i ve")i
catch { System. out.print l n ( "Enter your v alue a g ain.");
0··0 Appendix P:. Self Study Guide S
It is missing a semicolon. • It does not compile. (* ) It gives you an out of bounds exception. There is nothing wrong with this code.
0 ··0 Appendix P:. Self Study Guide I '
~
0 ···0 Appendix P:. Self Study Guide C 0 · ·0 Appendix P:. Self Study GUide 1
Con·ect
0 ···0 Appendix P:. Self Study Guide II
0 · ·0 Appendix P:. Self Study GUide~ 0··0 Appendix P:. Self Study Guide C
Section 7 (Answer all Questions in this section) 30. What operator do you use to call an object's constructor method and create a new object>
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for Review ( 1) Points
+ • new(* ) instanceOf ~
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Correct
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Summary
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Outline
><
?
•
•
--
1m A
e Section 0 - CoUI'
Mark for Review ( 1) Points
I!J.... Secbon 2 - tmng Allee 3
True • False (*)
I!J.... Section 3 - tmng Green foot
0 .. f) Java Fundamentals Midterm [
~
1!1..·0 Secbon ~ - tmng Eclipse 1!1.. ·0 Secbon 5 - U5\ng Control State 1!1.. ·0 Section 6 - tmngArra'}5and 1!1..·0 Section 7- tmng Recursion,
• 0 Java Ftmdamentats Fmal Exa
for Review ( 1) Points
~lark
for Review ( 1) Points
Classes cannot include strings. Classes cannot include mixed data types. • The constructor method has no definition. (*) There is nothing wrong.
0 .. 0 Appendix P:. Self Study GuideS 0 ..·0 Appendix P:. Self Study Guide L
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0 .. ·0 Appendix P:. Self Study GUide C
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33. Which of the following creates an instance of the class below>
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p ublic c la ss Th i sC la ss priv a t e i nt a=4, b=S; Th i sCla ss ( i n t x ) ( a=x *b ;
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ThisCiass t=new ThisCiass(); ThisCiass t; ThisCiass t=new ThisCiass(3,4); • ThisCiass t=new ThisCiass(S); (*)
0 .. ·0 Appendix P:. Self Study Guide C
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34. All objects, in Java, are created using int. True or false? True • False (*) ~
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...__ Uivate int number; p1ivate String name;; public Account; }
0 .. ·0 Appendix P:. Self Study Guide V
0 .. ·0 Appendix P:. Self Study Guide II
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32. What is wrong with the following class declaration?
0 .... Appendix P:. Self Study GUide V
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32. What is wrong with the following class declaration? EJ... () 2013·2015 Oracle kademy Em:ll'
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33. Which of the following creates an instance of the class below?
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Classes cannot include st>ings. Classes cannot include mixed data types. • The constructor method has no definition. (* ) There is nothing wrong.
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class Account{ ; private int number; private String name;; public Account; }
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ThisCiass t=new ThisCiass(); ThisCiass t; ThisCiass t=new ThisCiass(3,4); • ThisCiass !=new ThisCiass(5); (* )
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34. All objects, in Java, are created using int. True or false?
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0 .. 0 Appendix P:. Self Study Guide I' 0 ..·0 Appendix P:. Self Study Guide II 0 .. ·0 Appendix P:. Self Study GUide~
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35. A constructor is used to create objects. True or false?
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EJ... () 2013-2015 Oracle kademy Em:ll' I!J.... Section 0 - CoUI'
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0 ..·0 Appendix P:. Self Study GuideS
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Yes. A subclass inherits full access to all contents of its super class. Yes. Any variable passed through inheritance can be changed, but private methods cannot • No. A private variable can only be modified by the same class with which it is declared regardless of its inheritance. (* ) No. Nothing inherited by the super class can be changed in the subclass.
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43. Which segment of code represents a correct way to call a variable argument method counter that takes in integers as its variable argument parameter>
Mark for Review ( 1) Points
0 .. ·0 Appendix P:. Self Study GUide C 0 .. ·0 Appendix P:. Self Study Guide II
counter(St>ing a, int b); counter(int[] numbers); o counter(!, 5, 8, 17, 11000005); (* ) counter("one","two",String[] nums);
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44. Which of the following is the correct definition of a parameter?
Mark for Review ( 1) Points
0 ..·0 Appendix P:. Self Study Guide II
• A keyword that specifies accessibility of code. A way to call a method with a va>iable number of arguments using an elipse. A variable in a method declaration that gets passed into the method. (*) A type of access specifier. It is used to assign initial values to instance variables of a class; the structure is very similar to that of a method.
0 .. ·0 Appendix P:. Self Study GUide~ 0 .. ·0 Appendix P:. Self Study Guide C
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45. Non-final static class variables should be private to prevent changes from other classes. True or false> • True (*) False ~
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...__ Uformance than returning a primitive type. • The method makes changes to the object and you wish to continue to use the updated object outside of the method. (* ) None of the above. It is not possible to return an object.
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48. If an abstract class does not have implemented constructors or methods, it should be implemented as an interface instead. True or false?
0 .. 0 Appendix P:. Self Study GuideS
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True (*) False
0 ..·0 Appendix P:. Self Study Guide L 0 .. ·0 Appendix P:. Self Study GUide C 0 .. ·0 Appendix P:. Self Study Guide II
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49. Would this code be co>rect if a Dog is a HousePet? Why or Why not?
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0 .. 0 Appendix P:. Self Study Guide I' 0 ..·0 Appendix P:. Self Study Guide C
HousePet Scooby
Yes, because it is an abstract class. Yes, because polymorphism allows this since Dog is a subclass of HousePet. (*) No, because ref must be declared either a HousePet or a Dog, but not both. Maybe. There is no way to tell without seeing the methods for Dog and the methods for HousePet.
0 .. ·0 Appendix P:. Self Study GUide 1 0 .. ·0 Appendix P:. Self Study GuideS 0 .. 0 Appendix P:. Self Study Guide I'
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= new Dog();
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50. Consider the following method of the class Test:
Mark for Review ( 1) Points
public static List returnlist(List list) { return list; } Which of the following program segments in Test's client class will compile with no errors?
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