You can use this function for the same:
public static String[][] transpose(String[][] m){
String[][] temp = new String[m[0].length][m.length];
for (int i = 0; i < m.length; i++)
for (int j = 0; j < m[0].length; j++)
temp[j][i] = m[i][j];
return temp;
}
Hope it helps.
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solved How to change values’s position in 2d array in java? [closed]