import java.util.Scanner;
public class Array_2D_Transpose
{
public static int[][] transpose(int[][] ar)
{
int row = ar.length;
int col = ar[0].length;
int nar[][] = new int[col][row];
for (int i = 0; i < nar.length; i++) //decides number of rows... so taken new array (nar)
{
for (int j = 0; j < nar[i].length; j++)
{
nar[i][j] = ar[j][i];
}
}
return nar;
}
public static void main(String[] args)
{
Scanner sc = new Scanner(System.in);
System.out.println("Enter the Outer Array size : ");
int rows = sc.nextInt();
System.out.println("Enter the Inner Array size : ");
int col = sc.nextInt();
int ar[][] = new int[rows][col];
for (int i = 0; i < ar.length; i++)
{
for (int j = 0; j < ar[i].length; j++)
{
System.out.println("enter the value ar "+i+"th row and"+j+"the column");
ar[i][j] = sc.nextInt();
}
}
System.out.println("The array elements are :-");
for (int i = 0; i < ar.length; i++)
{
for (int j = 0; j < ar[i].length; j++)
{
System.out.print(ar[i][j]+" ");
}
System.out.println();
}
int nar1[][] = transpose(ar);
System.out.println("The array elements after TRANSPOSE :-");
for (int i = 0; i < nar1.length; i++)
{
for (int j = 0; j < nar1[i].length; j++)
{
System.out.print(nar1[i][j]+" ");
}
System.out.println();
}
}
}
Output:-
Enter the Outer Array size :
3
Enter the Inner Array size :
3
enter the value ar 0th row and0the column
1
enter the value ar 0th row and1the column
2
enter the value ar 0th row and2the column
3
enter the value ar 1th row and0the column
4
enter the value ar 1th row and1the column
5
enter the value ar 1th row and2the column
6
enter the value ar 2th row and0the column
7
enter the value ar 2th row and1the column
8
enter the value ar 2th row and2the column
9
The array elements are :-
1 2 3
4 5 6
7 8 9
The array elements after TRANSPOSE :-
1 4 7
2 5 8
3 6 9
Java Programming 