ICT2612: Interactive Programming Statements for the Missing Code - IT Assignment Help

Assignment Task:

Task:

Question 1
Study the incomplete code below and answer question 1 that follows

double enter1 = 30;
double enter2 = 40;
//----(i)----

Indicate which of the following statements for the missing code in (i) will NOT render and error message.

(1) byte total = enter1 + enter2;
(2) float total = enter1 + enter2;
(3) int total = enter1 + enter2;
(4) double total = enter1 + enter2;
(5) none of the above

Question 2
Study the code below and answer question 2 that follows
double myUnisa = 321.8;
int myLife = (int) myUnisa;

Indicate what is the value of myLife will be.

(1) Error message
(2) 321
(3) 322
(4) 3218
(5) None of the above

3

Question 3
Study the code below and indicate what the values of enter1 and enter2 will be:

int enter1 = 8;
++enter1;
int enter2 = enter1--;

(1) enter1: 8 enter2: 7
(2) enter1: 8 enter2: 8
(3) enter1: 8 enter2: 9
(4) enter1: 9 enter2: 8
(5) enter1: 9 enter2: 9

Question 4
Study the code below and indicate what the value of member will be:
int m = 5, n = 6, b = 0, a = 2;
int member = (m + n) * b / a;

(1) 0
(2) 0.0
(3) 5
(4) 5.0
(5) Division by zero error message

4
Question 5
Which of the following is an INVALID variable name in Java?

(1) String Key = “Java”;

Reason: A variable name cannot start with a capital letter.

(2) String key = “Java”;
Reason: “key” is a reserved keyword in Java.

(3) String 1key = “Java”;
Reason: A variable name cannot start with a number.

(4) String _key = “Java”;

Reason: A variable name cannot start with an underscore (_).

(5) String key$ = “Java”;

Reason: The dollar sign ($) can only be used at the start of the variable name, e.g $key.

Question 6
Which one of the following is NOT a general process associated with developing a mobile application?

(1) Compiling
(2) Inheriting
(3) Designing
(4) Coding

Question 7
Which one of the following is not a primitive data type in Java?
(1) bytes
(2) bool
(3) long
(4) String

5

Study the code below and answer question 8 to 9
int average = 0;
int total = 4;
for (int x = 0;x < total; x++)
average += x;

Question 8
What is the value stored in average after the execution of these lines of code?

(1) 6
(2) 8
(3) 10
(4) 16

Question 9
Which one of the following options is essentially the same as the give code?

(1) int average = 0;
int total = 4;
for (int x = 0; x >= total; x++)
average += x;

(2) int average = 0;
int total = 4;
int x = 0;
while (x <= total) {
average += x;
x = x + 1;

}
(3) int average = 0;
int total = 4;
do{
average += total
}
while (total > 0);

(4) int average = 0;
int total = 4;
do {
average += --total;

}
while (total != 0);

7

Question 10
Which one of the following lines of code is an INCORRECT array declaration?
int [] myArray1 = new int [7]; //line 1
int [] myArray2 = {10,20,30,40}; //line 2
int myArray3[]; myArray = new int [7]; //line 3
int myArray4[]; myArray4[] = new int [7];//line 4

(1) line 1
(2) line 2
(3) line 3
(4) line 4

Question 11
Study the code below and indicate what the value will be for theString after the code has executed:
char [ ] list = {‘a’, ‘b’, ‘c’, ‘d’, ‘e’};
String theString = new String (list);

(1) abcde
(2) ‘a’ ‘b’ ‘c’ ‘d’ ‘e’
(3) a b c d e
(4) Error message: error: incompatible types
Reason: you cannot create a new String from type char [

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