任意定义一个二维数组，实现矩阵的转置——java
import java.util.Scanner;
/*
* 任意定义一个二维数组，编写程序实现矩阵的转置。
* */
public class MatrixTransposition {
public static void main(String[] args) {
//create the rowNumber and columnNumber of the matrix
Scanner input = new Scanner(System.in);
System.out.println("input the rowNumber and columnNumber");
int rowNumber = input.nextInt();
int columnNumber = input.nextInt();
//create the matrix
int matrix[][] = createMatrix(rowNumber,columnNumber);//deliver the rowNumber and columnNumber
outputMatrix(matrix);
System.out.println("the Transform result is :");
int transitionResult[][] = transformMatrix(matrix);
//input matrix
outputMatrix(transitionResult);
}
//create matrix
public static int[][] createMatrix(int x,int y)
{
Scanner input = new Scanner(System.in);
//input the datas;
System.out.println("please the datas");
int array[][] = new int[x][y];
for(int i = 0;i < array.length;i ++)
{
for(int j = 0;j < array[i].length;j++)
{
array[i][j] = input.nextInt();
}
}
return array;
}
//tranform matrix
public static int[][] transformMatrix(int matrix[][])
{
int a[][] = new int[matrix[0].length][matrix.length];
for(int i = 0;i < matrix[0].length;i++)
{
for(int j = 0;j < matrix.length;j++)
{
a[i][j] = matrix[j][i];
}
}
return a;
}
//output matrix
public static void outputMatrix(int matrix[][])
{
for(int i = 0;i < matrix.length;i++)
{
for(int j = 0;j < matrix[i].length;j++)
{
System.out.print(matrix[i][j]+" ");
}
System.out.println();
}
}
}
