PPTV校招笔试题：矩阵转置

public class ZhuanZhi {
public static void main(String[] args) {
int a[][] = {
{1,2,3},
{4,5,6},
{7,8,9}
};
matrixTrans(a);
}

/**
* 转置矩阵的实现:设a为原始二维数组，则转置后的矩阵b[i][j]=a[col-1-j][i]，其中col是列数。
* @param a
*/
public static void matrixTrans(int a[][]){
int row = a.length;
int col = a[0].length;
for (int i = 0; i < row; i++) { for (int j = 0; j < col; j++) { System.out.print(a[col-1-j][i]+" "); } System.out.println(); } } }