CIT341
1. Which of these describes an array?
Objects of mixed data types can be stored
Elements in an array cannot be sorted
Index of first element of an array is always 1
Easier to store elements of same data type
2. Which of the following is an abstract datatype?
List
Int
Boolean
Char
3. Which of the following is a linear datatype?
Stack
tree
graph
none of the options
4. Which of the following is not a primitive data type in Java?
Int
String
Double
Boolean
5. What is the output after executing the following code fragment: int [] x = {1,2,3,4,5}; System.out.println(x[0]);
\(0\)
1
2
Array Index Out Of Bounds Exception
6. Which of these best describes an array?
A Linear datatype
A collection of objects of similar types
A basic datatype
A collection of objects which may not necessarily be of same type
7. Which of the following is a best way of declaring x as a two-dimension array in java
int[][] x = new int[10][20];
int[10][20] x = new int[20][10];
int[2] x = new int[];
int[]x = new int[2];
8. Which of the following is a valid value in Boolean data type ?
AND
OR
NOT
9. Which of the following is a non-linear data structure?
list
stack
queue
Tree
10. The collection of values and operations allowed on those values is known as
Class
Data type
Object
Extended Class
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