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14 January, 00:44

Write a method transpose, that takes as argument a 2D array of integers, myTable, and returns the transpose of myTable. The transpose is a 2D array where rows from the original array become columns. In the first example below, the first row (2,3,4) became the first column 2, 4 and the second row (5,6,4) became the second column 4 Do not print anything in the transpose method Example: Input 1 Answer 2 1 4 7 2 5 8 3 6 9 1 Input 2 1 2 3 4 5 6 7 8 9 Answer

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  1. 14 January, 02:45
    0
    The program to this question can be given as:

    Program:

    import java. util.*; / /import package

    public class Main / /defining class

    {

    public static int[][] transpose (int[][] a1) / /defining function transpose

    {

    int i, j; / /define variables

    int[][] transpose = new int[a1[0]. length][a1. length]; / /define variable transpose.

    //loop for transpose matrix.

    for (i = 0; i < a1. length; i++)

    {

    for (j = 0; j < a1[i]. length; j++)

    {

    transpose [j][i] = a1[i][j]; / /hold value in transpose variable

    }

    }

    return transpose; / /return transpose matrix.

    }

    public static void main (String[] args) / /main method.

    {

    int row, col, i, j; / /defining variable.

    Scanner obj = new Scanner (System. in); / /creating Scanner class Object

    System. out. print ("Enter number of rows: "); //message

    row = obj. nextInt (); / /input rows form user.

    System. out. print ("Enter number of columns: "); //message

    col = obj. nextInt (); / /input columns form user.

    int[][] a1 = new int[row][col]; / /defining array.

    System. out. println ("Enter matrix"); / /message

    / / loop for input array elements from user

    for (i=0; i
    {

    for (j=0; j
    {

    a1[i][j]=obj. nextInt (); / /input in array variable.

    }

    }

    System. out. println ("Matrix you insert : "); / /message

    / / loop for display array.

    for (i=0; i
    {

    for (j=0; j
    {

    System. out. print (a1[i][j]+" "); / /print matrix

    }

    System. out. print ("/n");

    }

    int[][] result = transpose (a1); / /define result array variable that holds function value.

    System. out. println ("Transposed matrix is : ");

    //use loop for print Transpose matrix.

    for (i = 0; i < result. length; i++)

    {

    for (j = 0; j < result[i]. length; j++)

    {

    System. out. print (result[i][j] + " "); / /print matrix

    }

    System. out. print ("/n");

    }

    }

    }

    Output:

    Enter number of rows: 2

    Enter number of columns: 3

    Enter matrix

    2

    3

    4

    9

    8

    7

    Matrix you insert:

    2 3 4

    9 8 7

    Transposed matrix is:

    2 9

    3 8

    4 7

    Explanation:

    The description of the above program can be given as:

    In the above program firstly import a package, then declare a class that is "Main" inside a class defining a transpose () function this function returns a matrix in transpose form. In the main class, we define a variable and matrix that is "row, col, i, j and a1[][]". Then we Creating a scanner class object, which is used by row, col and a1[][] variables for user input. The row and col variables are used to declare matrix size and i, j variable is used in the loop for insert and display matrix. a1[][] matrix is used for input matrix elements and passes into transpose () function as an argument that returns a value that is held in the result variable. This is used as a loop for the print transpose matrix.
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