Matrix 90 Grad drehen

[computernerds]

Does anyone know a better algorithm to turn a matrix by 90 degrees.

public class TurnMatrix {

	final int[][] mat = new int[][]{{1,2,3},{4,5,6},{7,8,9}};
	int[][] matNew = new int[3][3];

	public void turnMatrix90()
	{

		for(int i=0,k=2;i<3;i++,k--)
		{
			for(int j =0;j<3;j++)
			{
				matNew[j][k]=mat[i][j];
			}
		}

         // print matNew
	}