2d array Java

2d array Java

Assessment

Assessment

Created by

Sheryl Edwards

Mathematics, Science, Computers

10th - 12th Grade

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3 questions

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1.

Multiple Choice

30 sec

1 pt

Which of the following statements correctly declares a two-dimensional integer array?

int Matrix[ ] = new int[5,4];

int Matrix[ ]; Matrix = new int[5,4];

int Matrix[ ][ ] = new int[5][4];

int Matrix[ ][ ] = int[5][4];

2.

Multiple Choice

30 sec

1 pt

How would you get the value 6 out of the following array int[][] a = {{2, 4, 6, 8}, {1, 2, 3, 4}};? Remember each set of curly braces represents a row, or a single dimensional array.

a [0][3]

a [1][3]

c) a[0][2]

d) a[2][0]

e) a[3][1]

3.

Multiple Choice

30 sec

1 pt

How many columns does a have if it is created as follows

int[][] a = {{2, 4, 6, 8}, {1, 2, 3, 4}};?

3

4

2

1

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