ITCS 1213 UNCC FINAL EXAM QUESTIONS WITH
COMPLETE SOLUTION GRADED A+
Is it possible to create an array in Java where the first row has 5 elements, the second
row has 6 elements and the third row has 2 elements? - ANSWER>>yes
create a for loop to execute: Is it possible to create an array in Java where the first
row has 5 elements, the second row has 6 elements and the third row has 2 elements?
- 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. -
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? - ANSWER>>null
What does Java initialize an array of ints to? - ANSWER>>0
Is an array an object? - ANSWER>>Yes
int [ ] numbers = new int[16] how many objects were created? - ANSWER>>1, new was
used once
Student [ ] roster = new Student[25] <- how many objects were created? - ANSWER>>1,
new was used once
, Write the command to compile a source code file named Book.java - ANSWER>>javac
Book.java
Write the command to run a class file named Book.class - ANSWER>>java Book
Where does the execution of a Java project begin? - ANSWER>>public static void
main(String [] args)
How many public classes can a Java class file contain? - ANSWER>>1
Can you declare fields of a class inside a method? - ANSWER>>No
What does private access for a field mean? - ANSWER>>Only the current class will
have access to the field or method.
What does public access for a field mean? - ANSWER>>Any class can refer to the field
or call the method.
What does protected access for a field mean? - 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? - ANSWER>>It will set the
access to package
Can a sub-class also be a super-class? - ANSWER>>Yes, Java allows this
What is an abstract method? - ANSWER>>It is a method that is declared, but contains
no implementation
COMPLETE SOLUTION GRADED A+
Is it possible to create an array in Java where the first row has 5 elements, the second
row has 6 elements and the third row has 2 elements? - ANSWER>>yes
create a for loop to execute: Is it possible to create an array in Java where the first
row has 5 elements, the second row has 6 elements and the third row has 2 elements?
- 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. -
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? - ANSWER>>null
What does Java initialize an array of ints to? - ANSWER>>0
Is an array an object? - ANSWER>>Yes
int [ ] numbers = new int[16] how many objects were created? - ANSWER>>1, new was
used once
Student [ ] roster = new Student[25] <- how many objects were created? - ANSWER>>1,
new was used once
, Write the command to compile a source code file named Book.java - ANSWER>>javac
Book.java
Write the command to run a class file named Book.class - ANSWER>>java Book
Where does the execution of a Java project begin? - ANSWER>>public static void
main(String [] args)
How many public classes can a Java class file contain? - ANSWER>>1
Can you declare fields of a class inside a method? - ANSWER>>No
What does private access for a field mean? - ANSWER>>Only the current class will
have access to the field or method.
What does public access for a field mean? - ANSWER>>Any class can refer to the field
or call the method.
What does protected access for a field mean? - 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? - ANSWER>>It will set the
access to package
Can a sub-class also be a super-class? - ANSWER>>Yes, Java allows this
What is an abstract method? - ANSWER>>It is a method that is declared, but contains
no implementation
