2D Array Column-Major Traversal

What is the output produced by the execution of the following code segment?

String[][] data = {
    {"AA", "BB"},
    {"CC", "DD"},
    {"EE", "FF"},
    {"GG", "HH"}
};
for (int col = 0; col < data[0].length; col++) {
    for (int row = 0; row < data.length; row++) {
        System.out.print(data[row][col] + " ");
    }
    System.out.println();
}