Summing Columns And Displaying Array

public static void displayOutputs (int[][] anArray) {
System.out.println("

Here is your 2Dim array:");
for (int i = 0; i < anArray.length; i++) {
System.out.println(Arrays.deepToString(anArray));
}
}

This is my code and I get this as a result when I input 10,20,30,...,90 into array[0][0], array[0][1], ..., array[2][2] (3rows, 3columns array)

[[10, 20, 30], [40, 50, 60], [70, 80, 90]]

[[10, 20, 30], [40, 50, 60], [70, 80, 90]]

[[10, 20, 30], [40, 50, 60], [70, 80, 90]]

While I expect to get only

[10, 20, 30]

[40, 50, 60]

[70, 80, 90]

I get no errors at least when I have the same # of rows and # of columns. However, when I have more columns than rows, a compiler stops running when it runs columnSum method.Here's an error message.

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 2
at lab10.Array2DMethods.columnSum(Arrays2DDemo.java:70)
at lab10.Arrays2DDemo.main(Arrays2DDemo.java:111)
Java Result: 1

And here's my code

public static void columnSum (int[][] anArray) {
int sum =0;
for (int col=0; col < anArray.length; col++) {
sum=0;
for (int r = 0; r < anArray[col].length; r++ ){
sum += anArray[r][col];
}
System.out.println("Sum of column " + col + " = " + sum);
}
}

why my code doesn't work when I have more columns.