随笔档案(496)

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/**
*
* @(#)ZhuanzMatrix.java
*
* @author    JAdmin
* @version   1.00    2008/08/22
*/

import java.util.Scanner;

public class ZhuanzMatrix
{
public static void main(String[] args)
{
   int row,col;
   Scanner sr = new Scanner(System.in);
   System.out.println("请输入矩阵的行和列参数：");
   System.out.print("row=");
   row = sr.nextInt();
   System.out.print("col=");
   col = sr.nextInt();
   int[][] array = new int[row][col];
   System.out.println("请输入矩阵各元素Matrix[" + row + "]" + "[" + col + "]");
   input(array);
   System.out.println("原矩阵：");
   display(array);
   int[][] newarr = doZhuanz(array);
   System.out.println("转置后：");
   display(newarr);
}

private static void input(int[][] arr)
{
   Scanner sr = new Scanner(System.in);
   for(int i = 0;i < arr.length;i++)
    for(int j = 0;j < arr[0].length;j++)
      arr[i][j] = sr.nextInt();
}

private static void display(int[][] arr)
{
   for(int i = 0;i < arr.length;i++)
   {
    for(int j = 0;j < arr[0].length;j++)
     System.out.print(arr[i][j]+" ");
    System.out.println();
   }
}

private static int[][] doZhuanz(int[][] arr)
{
   int[][] tmparr = new int[arr[0].length][arr.length];
   for(int i = 0;i < tmparr.length;i++)
    for(int j = 0;j < tmparr[0].length;j++)
     tmparr[i][j] = arr[j][i];
   return tmparr;
}
}