ITCS 1213 UNCC FINAL EXAM QUESTIONS
WITH 100% CORRECT ANSWERS |
VERIFIED | LATEST UPDATE
Is..it..possible..to..create..an..array..in..Java..where..the..first..row..has..5..eleme
nts,..the..second..row..has..6..elements..and..the..third..row..has..2..elements?..
-..Correct..Answer-yes
create..a..for..loop..to..execute:..Is..it..possible..to..create..an..array..in..Java..wh
ere..the..first..row..has..5..elements,..the..second..row..has..6..elements..and..t
he..third..row..has..2..elements?..-..Correct..Answer-
double..[]..[]..salaries..=..new..double..[NUM_STORES][];..
array[0]..=..new..double..[5];..
array[1]..=..new..double..[6];..
array[2]..=..new..double..[2];
Write..the..statement..to..print..the..number..of..elements..in..a..one-
dimensional..array...-..Correct..Answer-for(i..=0;..i<array.length..-1;..i++)
{
..System.out.println(array[i]);..
}
What..does..Java..initialize..the..elements..of..an..array..of..references..to?..-
..Correct..Answer-null
,What..does..Java..initialize..an..array..of..ints..to?..-..Correct..Answer-0
Is..an..array..an..object?..-..Correct..Answer-Yes
int..[..]..numbers..=..new..int[16]..how..many..objects..were..created?..-
..Correct..Answer-1,..new..was..used..once
Student..[..]..roster..=..new..Student[25]..<-
..how..many..objects..were..created?..-..Correct..Answer-
1,..new..was..used..once
Write..the..command..to..compile..a..source..code..file..named..Book.java..-
..Correct..Answer-javac..Book.java
Write..the..command..to..run..a..class..file..named..Book.class..-
..Correct..Answer-java..Book
Where..does..the..execution..of..a..Java..project..begin?..-..Correct..Answer-
public..static..void..main(String..[]..args)
How..many..public..classes..can..a..Java..class..file..contain?..-..Correct..Answer-
1
Can..you..declare..fields..of..a..class..inside..a..method?..-..Correct..Answer-No
, What..does..private..access..for..a..field..mean?..-..Correct..Answer-
Only..the..current..class..will..have..access..to..the..field..or..method.
What..does..public..access..for..a..field..mean?..-..Correct..Answer-
Any..class..can..refer..to..the..field..or..call..the..method.
What..does..protected..access..for..a..field..mean?..-..Correct..Answer-
Only..the..current..class..and..sub..classes..(and..sometimes..also..same-
package..classes)..of..this..class..will..have..access..to..the..field..or..method.
What..happens..if..you..do..not..specify..the..access..for..a..field?..-
..Correct..Answer-It..will..set..the..access..to..package
Can..a..sub-class..also..be..a..super-class?..-..Correct..Answer-
Yes,..Java..allows..this
What..is..an..abstract..method?..-..Correct..Answer-
It..is..a..method..that..is..declared,..but..contains..no..implementation
What..is..an..abstract..class?..-..Correct..Answer-
Is..a..class..that..is..declared..abstract..—
it..may..or..may..not..include..abstract..methods...Abstract..classes..cannot..be..i
nstantiated,..but..they..can..be..sub..classed.
Does..a..super..class..have..to..be..abstract?..-..Correct..Answer-No
WITH 100% CORRECT ANSWERS |
VERIFIED | LATEST UPDATE
Is..it..possible..to..create..an..array..in..Java..where..the..first..row..has..5..eleme
nts,..the..second..row..has..6..elements..and..the..third..row..has..2..elements?..
-..Correct..Answer-yes
create..a..for..loop..to..execute:..Is..it..possible..to..create..an..array..in..Java..wh
ere..the..first..row..has..5..elements,..the..second..row..has..6..elements..and..t
he..third..row..has..2..elements?..-..Correct..Answer-
double..[]..[]..salaries..=..new..double..[NUM_STORES][];..
array[0]..=..new..double..[5];..
array[1]..=..new..double..[6];..
array[2]..=..new..double..[2];
Write..the..statement..to..print..the..number..of..elements..in..a..one-
dimensional..array...-..Correct..Answer-for(i..=0;..i<array.length..-1;..i++)
{
..System.out.println(array[i]);..
}
What..does..Java..initialize..the..elements..of..an..array..of..references..to?..-
..Correct..Answer-null
,What..does..Java..initialize..an..array..of..ints..to?..-..Correct..Answer-0
Is..an..array..an..object?..-..Correct..Answer-Yes
int..[..]..numbers..=..new..int[16]..how..many..objects..were..created?..-
..Correct..Answer-1,..new..was..used..once
Student..[..]..roster..=..new..Student[25]..<-
..how..many..objects..were..created?..-..Correct..Answer-
1,..new..was..used..once
Write..the..command..to..compile..a..source..code..file..named..Book.java..-
..Correct..Answer-javac..Book.java
Write..the..command..to..run..a..class..file..named..Book.class..-
..Correct..Answer-java..Book
Where..does..the..execution..of..a..Java..project..begin?..-..Correct..Answer-
public..static..void..main(String..[]..args)
How..many..public..classes..can..a..Java..class..file..contain?..-..Correct..Answer-
1
Can..you..declare..fields..of..a..class..inside..a..method?..-..Correct..Answer-No
, What..does..private..access..for..a..field..mean?..-..Correct..Answer-
Only..the..current..class..will..have..access..to..the..field..or..method.
What..does..public..access..for..a..field..mean?..-..Correct..Answer-
Any..class..can..refer..to..the..field..or..call..the..method.
What..does..protected..access..for..a..field..mean?..-..Correct..Answer-
Only..the..current..class..and..sub..classes..(and..sometimes..also..same-
package..classes)..of..this..class..will..have..access..to..the..field..or..method.
What..happens..if..you..do..not..specify..the..access..for..a..field?..-
..Correct..Answer-It..will..set..the..access..to..package
Can..a..sub-class..also..be..a..super-class?..-..Correct..Answer-
Yes,..Java..allows..this
What..is..an..abstract..method?..-..Correct..Answer-
It..is..a..method..that..is..declared,..but..contains..no..implementation
What..is..an..abstract..class?..-..Correct..Answer-
Is..a..class..that..is..declared..abstract..—
it..may..or..may..not..include..abstract..methods...Abstract..classes..cannot..be..i
nstantiated,..but..they..can..be..sub..classed.
Does..a..super..class..have..to..be..abstract?..-..Correct..Answer-No
