class MatrixExampleDemo {
public static void main(String[] args) {
int array[][] = { { 1, 3, 5 }, { 2, 4, 6 } };
System.out.println("Row size= " + array.length);
System.out.println("Column size = " + array[1].length);
outputArray(array);
}
public static void outputArray(int[][] array) {
int rowSize = array.length;
int columnSize = array[0].length;
for (int i = 0; i <= 1; i++) {
System.out.print("[");
for (int j = 0; j <= 2; j++) {
System.out.print(" " + array[i][j]);
}
System.out.println(" ]");
}
System.out.println();
}
}
入住這也...................
import java.lang.reflect.Array;
import static java.lang.System.out;
public class CreateMatrix {
public static void main(String... args) {
Object matrix = Array.newInstance(int.class, 2, 2);
Object row0 = Array.get(matrix, 0);
Object row1 = Array.get(matrix, 1);
Array.setInt(row0, 0, 1);
Array.setInt(row0, 1, 2);
Array.setInt(row1, 0, 3);
Array.setInt(row1, 1, 4);
for (int i = 0; i < 2; i++)
for (int j = 0; j < 2; j++)
out.format("matrix[%d][%d] = %d%n", i, j, ((int[][])matrix)[i][j]);
}
}
謝謝,但我真的不明白你的解決方案 – lola
你甚至嘗試瞭解他的解決方案? – Joze
我已經更新了我的問題,我的矩陣是列 – lola