How to make two different arrays into one 2d array

Question

There are two different String arrays.

String a[] = {"a", "b", "c", "d"}; String b[] = {"1", "2", "3", "4"};

And I want to make these two arrays into a 4*2 matrix.

String answer[][] = {{"a", "1"}, {"b", "2"}, {"c", "3"}, {"d", "4"}};

How can I make this matrix?

String[][] result = {a,b};

After making this result, is there any other way to rotate the rows and columns of the result?

"I want to make these two arrays into a 4*2 matrix." You've got the syntax, right there. — Andy Turner
– Andy Turner, Commented Sep 23, 2021 at 9:55

Oleg Cherednik · Accepted Answer · 2021-09-23 10:06:34Z

public static String[][] convert(String[] a, String[] b) { String[][] res = new String[a.length][]; for(int row = 0; row < a.length; row++) res[row] = new String[] { a[row], b[row] }; return res; }

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