Question 1

Which one is not correct?

Accepted Answer

String shoes[] = new String[];

Answer

int [] digits = new int[5];

Answer

Plant plantSpecies[] = new Plant[22];

Answer

double weightClass[] = new double[2];

Question 2

You can remove 'memory slots' from an array if they are no longer needed.

Answer

true

Question 3

What will be the print out?

char alphabet[] = new char[26];

alphabet[0] = 'A';
alphabet[1]= 'B';
alphabet[2] = 'C';

System.out.println(alphabet[1]);

Accepted Answer

B

Answer

A

Answer

C

Answer

None of the above, it will print memory address

Question 4

When you create an Array, all elements inside must be the same data type.

Answer

true

Question 5

Choose the correct 'formula' for creating an array:

Accepted Answer

data type + [] + variable = new data type[n];

Answer

data type + variable[] = new variable[n];

Answer

variable + data type[] = new data type[n]l

Answer

variable + [] + data type = new variable[n]

Question 6

This code will run:

String names[] = new String[4];
String[0] = "4";

Accepted Answer

True

Answer

False

Question 7

Loops are controlled by boolean statements.

Answer

true

Question 8

What is the correct way to calculate the length of the following array?

String names[] = new String[5];

Accepted Answer

int n = names.length

Answer

int n = names.length();

Answer

int n = getLengthOfNames[];

Answer

int n = names.trim().length()

Question 9

What is the flaw in this line of code?

int index= 0;
while(    index < words.length    )
{
System.out.println(words[index]);
}

Accepted Answer

Index is not incrementing so the loop is flawed

Answer

This is not the correct format to write a while loop

Answer

Condition is never true so it can not evaluate

Answer

There is a synatx error

Question 10

What will print out?

Movie movieTitle[] = new Movie[5];

movieTitle[0] = "Nacho Libre";
movieTitle[2] = "John Wick";
movieTitle[3]= "Serenity';

System.out.println(movieTitle[2]);

Accepted Answer

The memory address for "John Wick"

Answer

null

Answer

"John Wick"

Answer

Syntax Error

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