(Solved Homework): import java. util. Scanner; public class Transpose static void createPatterned2DArray (int arr []ll) t if (arr null)

import java. util. Scanner; public class Transpose static void createPatterned2DArray (int arr []ll) t if (arr null) return for (int i 0; i arr. length; ++i) for (int j J 0; j arr [i] length; ++j) t arr [i] [j] 10 arr. length (i 1) j static void print2DArray (int arr if (arr null) return for (int i 0; i arr. length; ++i) t System out un for (int j 0; j arrlil. length; ++j) t System out print (arr [i] [j]Need help writing a TestTranspose for my code i have above in java

import java. util. Scanner; public class Transpose static void createPatterned2DArray (int arr []ll) t if (arr null) return for (int i 0; i arr. length; ++i) for (int j J 0; j arr [i] length; ++j) t arr [i] [j] 10 arr. length (i 1) j static void print2DArray (int arr if (arr null) return for (int i 0; i arr. length; ++i) t System out un for (int j 0; j arrlil. length; ++j) t System out print (arr [i] [j]

Expert Answer

 You almost have all the code, even for the test. Its in main(). But according to the question, the array should be stored in instance variable and not passed as argument. So I have modefied the Transpose class to do that and the written the TestTranspose class to test it. Please do not hesistate to ask me any doubts / clarificatons. You can post a comment and I will reply to it.

Also in the test program, in the getIdentificationString() method, DO NOT FORGET TO PUT YOUR NAME. It shows XXX right now.

Please use the following code – modified Transpose and new TestTranspose class.

Please don’t forget to rate the answer if it helped. Thank you very much.

Transpose.java

public class Transpose {

int array[][];

public Transpose(int row, int col)

{

array = new int[row][col];

}

 

public void createPatterned2DArray()

{

 

 

for(int i= 0; i< array.length; ++i){

for (int j = 0; j < array[i].length; ++j){

array[i][j] = 10 + array.length * (i+1) + j;

}

}

}

 

public void print2DArray()

{

 

for(int i = 0; i< array.length; ++i){

System.out.println();

for(int j = 0; j < array[i].length; ++j){

System.out.print(array[i][j] + ” “);

}

}

}

 

public void print2DArrayTransposed()

{

 

System.out.println();

for(int j = 0; j< array[0].length; ++j){

System.out.println();

for(int i = 0; i < array.length; ++i){

System.out.print(array[i][j] + ” “);

}

}

}

}

TestTranspose.java

import java.util.Scanner;

public class TestTranspose {

public String getIdentificationString()

{

String program=”Program 2b”, student= “XXX”;

return program+”, “+student;

}

 

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

System.out.print(“Enter the row and column: “);

int row = sc.nextInt();

int cols = sc.nextInt();

Transpose t = new Transpose(row, cols);

t.createPatterned2DArray();

t.print2DArray();

System.out.println();

t.print2DArrayTransposed();

 

}

}

output

Enter the row and column: 5 7

15 16 17 18 19 20 21

20 21 22 23 24 25 26

25 26 27 28 29 30 31

30 31 32 33 34 35 36

35 36 37 38 39 40 41

15 20 25 30 35

16 21 26 31 36

17 22 27 32 37

18 23 28 33 38

19 24 29 34 39

20 25 30 35 40

21 26 31 36 41

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