AP Computer Science A Quiz

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AP Computer Science A Quiz - Unit 6

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What is the value of old after this code segment is executed? *

1 point

Ali

What can Arrays store in the coding language of Java? *

1 point

Primitive data

Object reference data

Java

Both A and B

Which of the following arrays below this question has a length of 3? *

1 point

None of the below

String[] op={"Ali", "d", "s"};

String[] ophj={"Ali", "d", "s","sh"};

int[] mop={9,9};

What will be printed out after the code segment beneath this question runs? *

1 point

9 (new line) 3

Which of the following arrays below this question doesn’t have a length of 5? *

1 point

int[] yumi={9,9,2,1,2};

double [] yes={2.2,9.223,2.6,1.4,2};

double [] s={2.2,9.23};

String []r= new String[5];

Which of the following is not true about Arrays? *

1 point

The size of an Array object can never be increased.

The size of an Array object can never be decreased.

There are no methods that could increase or decrease the size of an Array

Arrays length can only be 3

What is printed out after this code segment below this question runs? *

1 point

System.out.println(floor[z]);

double[] floor = {0.4, 2.3, 1.1, 68.33, 8.4};

0.4 (new line) 2.3 (new line) 1.1 (new line) 68.33 (new line) 8.4 (new line)

None of the above

What is the error in this code segment below this question? *

1 point

No semicolon after r[0]="3"

The Array was not properly initialized

No errors in this code segment

None of the above.

Which of the following answer choices correctly initialize an Array called randle? *

1 point

String [] randle = ne String[22];

int [] randle = ne String[22];

int [] randle = new String[22]; s

double [] randle = new double[22];

What is the value of a variable called derrick after this code runs? *

1 point

9.2

9.214

9.213

What will be the output after the code below this question runs? *

1 point

9.99

What is an enhanced for loop also called? *

1 point

Primitive Values

Java

For each loop

None of the above

Which of the following answer choices below this question accurately describes Array Length? *

1 point

Is a primitive value

Is a reference to the Simpsons

Is the number of elements an Array can actually hold.

None of the above.

What is the use for the For-each loop? *

1 point

Used to create errors in Java

Used to make coding languages

Utilized to loop through every element in an Array.

None of the above.

What is the value of m after this code runs? *

1 point

False

Falso

true

None of the above

Which of the following below this question are Arrays that are valid? *

1 point

boolean [] qa = {true,false,true};

boolean [] qa = {true,false,true”””””};

booleana [] qa = {true,false,true,false};

None of the above

What will be printed out after this code segment runs? *

1 point

1600

1599

1500

1301.2

What is the output of this code snippet? *

1 point

1.0

0.2

What is the length of the Array called games? *

1 point

What is the length of the Array called p? *

1 point

None of the above

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