AP CSP Practice Test On Arrays (ArrayList And 2D Arrays)

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Consider the following method that will alter the matrix mat : /** @param mat the initialized matrix * @param row the row number */ public static void matStuff(int[][] mat, int row) { int numCols = mat[0].length; for (int col = 0; col < numCols; col++) mat[row][col] = row; } Suppose mat is originally 1 4 9 0 2 7 8 6 5 1 4 3 After the method call matStuff(mat,2) , matrix mat will be

A System.out.println(student.getAddress().getName()); A run-time error will occur. III only

Correct Answer:

Explanation:

Correct answer: A

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