Write code that will fill the following array a with numbers typed at the keyboard: int[][] a = new int[4][5]; Although the user will enter five numbers per line on four lines, your solution need not...

Write code that will fill the following array a with numbers typed at the

keyboard:

int[][] a = new int[4][5];

Although the user will enter five numbers per line on four lines, your

solution need not depend on how the input numbers are divided into lines.