Array_to be discussF3

Array_to be discussF3

University

18 Qs

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Array_to be discussF3

Array_to be discussF3

Assessment

Quiz

Computers

University

Practice Problem

Hard

Created by

ZURAIDAH Moe

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18 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 2 pts

int[] myArray = {11, 22, 33, 44, 55};

Which of the following is the code to print the length of this array?

System.out.println(int[].myArray.length());

System.out.println(myArray.length);

System.out.println(myArray.length());

System.out.println(int[].myArray.size());

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

String[] friends = {"John", "Mike", "Samantha", "Monica"};

which code is correct to print "Samantha" using array functionality?

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

System.out.println(friends[3]);

System.out.println(friends["Samantha"]);

System.out.println(friends{2});

3.

MULTIPLE CHOICE QUESTION

45 sec • 2 pts

Select correct code to create an array of "double" datatype of length 5.

double arr = double[5];

double{} arr = new double{5};

double[5] arr = new double[];

double[] arr = new double[5];

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the relationship between the length of an array and the last index of that array?

last-index is always 1 more than the length

last-index is 1 less than the length (but not always)

last-index is always 1 less than the length

last-index is always equal to the length

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Code to declare an array that stores the scores (mark) for 20 students.

double mark;

double [20] mark = new double;

double [ ] mark = new mark [20];

double [ ] mark = new double [20];

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Code to declare an array that stores the names of 15 students.

String [ ] name = new String;

String [ ] name = new String [15];

name = new String [15];

String [15] name = new String [ ];

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Java code to display the size of an array name studentname[ ].

System.out.println("The size is " + studentname[ index ]);

System.out.println("The size is " + studentname.length);

System.out.println("The size is " + length.length);

System.out.println("The size is " + studentname);

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