java用二维数组写定义两个数组，将这两个数组合并形成新的数组，打印新数组

下面是一个示例代码：

public class MergeArrays {
    public static void main(String[] args) {
        int[][] array1 = {{1, 2}, {3, 4}};
        int[][] array2 = {{5, 6}, {7, 8}};
        int[][] mergedArray = mergeArrays(array1, array2);
        printArray(mergedArray);
    }

    // 合并两个二维数组
    public static int[][] mergeArrays(int[][] array1, int[][] array2) {
        int rows = array1.length + array2.length;
        int cols = array1[0].length;
        int[][] mergedArray = new int[rows][cols];
        for (int i = 0; i < array1.length; i++) {
            for (int j = 0; j < cols; j++) {
                mergedArray[i][j] = array1[i][j];
            }
        }
        for (int i = 0; i < array2.length; i++) {
            for (int j = 0; j < cols; j++) {
                mergedArray[i + array1.length][j] = array2[i][j];
            }
        }
        return mergedArray;
    }

    // 打印二维数组
    public static void printArray(int[][] array) {
        for (int i = 0; i < array.length; i++) {
            for (int j = 0; j < array[i].length; j++) {
                System.out.print(array[i][j] + " ");
            }
            System.out.println();
        }
    }
}

输出结果：

1 2 
3 4 
5 6 
7 8