取二维数组的全部列的最小值组成一个数组

取二维数组的所有列的最小值组成一个数组

package demo;

import java.util.Arrays;

/**
?* 取二维数组的所有列的最小值组成一个数组
?*/
public class Ary {
?public static void main(String[] args) {
??int[][] iAry = {{1, 5, 2},{3, 4, 6, 2}};
??int rows = iAry.length;
??System.out.println("二维数组为：");
??/**
??? 当然下面可以使用
?? System.out.println(Arrays.deepToString(iAry));
?? 来打印该二维数组，但打印出来后不利于查看
?? */
??for(int row = 0; row < rows; row++){
???for(int col = 0; col < iAry[row].length; col++){
????System.out.print(iAry[row][col] + "\t");
???}
???System.out.println();
??}
??int colMax = iAry[0].length;
??for(int row = 1; row < rows; row++){
???if(iAry[row].length > colMax){
????colMax = iAry[row].length;
???}
??}
??System.out.println("该二维数组的最大列数为：" + colMax);
??int[] ary = new int[colMax];
??//将小于最大列的行补充0至最大列数
??for(int row = 0; row < rows; row++){
???if(iAry[row].length < colMax){
????iAry[row] = Arrays.copyOf(iAry[row], colMax);
???}
??}
??for(int col = 0; col < colMax; col++){
???int min = iAry[0][col];
???for(int row = 1; row < rows; row++){
????if(iAry[row][col] < min){
?????min = iAry[row][col];
????}
???}
???System.out.println("第" + col + "列的最小值为：" + min);
???ary[col] = min;
??}
??System.out.println("取该二维数组的所有列的最小值组成的一维数组为：" + Arrays.toString(ary));
?}
}