April 12 Assignment

Instructions

Please log into cs.bridgewater.edu. Navigate to the csci101/hw/apr12 directory in your git repository. Write a program in a file named Practice.java that satisfies the following program specifications. When finished, push your code to GitHub.

Program Specification

Write a method named printMatrix that takes a 2D array (matrix) of integers as an argument and prints the elements in the matrix to the screen with each row of elements appearing on a separate line.

Write a second method, also named printMatrix that takes a 2D array (matrix) of characters as an argument and prints the elements in the matrix to the screen with each row of elements appearing on a separate line.

In main() please do the following.

• • Creates a 3 x 3 2D array of characters named matrix1 with the following values:
    c a t
    a t e
    t e a
  • Print the contents of matrix1 using the printMatrix method.
  • Create a 3 x 3 2D  array of integers named matrix2.  Using nested for-loops initializes the 2D array with following values:
    1 1 1
    1 1 1
    1 1 1
  • Print the contents of matrix2 using the printMatrix method.
  • Change the element at row 1, column 1 in matrix2 to the value 7.
  • Print the contents of matrix2 using the printMatrix method.
  • Write a fragment of code that creates a 3 x 3 2D array of characters named matrix3 and using nested for-loops populate matrix3 with the values in  matrix1 (in the same order).
  • Print the contents of matrix3 using the printMatrix method.
  • Get the value of the element at row 1, column 1 in matrix3 and store it in a variable named elm.  Print the value of elm to the screen.

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