编辑代码

public class PrintNumbersRecursively {

    public static void printNumbers(int n) {
        if (n > 0) {
            printNumbers(n - 1);
            printRow(n);
        }
    }

    private static void printRow(int n) {
        for (int i = 0; i < n; i++) {
            System.out.print(n + " ");
        }
        System.out.println();
    }

    public static void main(String[] args) {
        int n = 5; 
        printNumbers(n);
    }
}