如何在客户端类中生成(2维数组，2维数组)

public class Client {
    public static void main(String[] args) {
        int[][] array = generateTwoDimensionalArray(3, 4);
        printArray(array);
    }
    
    public static int[][] generateTwoDimensionalArray(int rows, int cols) {
        int[][] array = new int[rows][cols];
        
        for (int i = 0; i < rows; i++) {
            for (int j = 0; j < cols; j++) {
                // 可以根据需求为每个元素赋予一个值，这里示例为行列索引的和
                array[i][j] = i + j;
            }
        }
        
        return array;
    }
    
    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();
        }
    }
}