CODEWITHSUNDEEP
java
Spencer Brunnert
Spencer Brunnert

Reputation: 11

Cannot print pyramid of numbers

    for (int i = 1; i <= 4; i++)
    {
        int n = 4;

        for (int j = 1; j <= n - i; j++)
        {
            System.out.print(" ");
        }
        for (int k = i; k >= 1; k--)
        {
            System.out.print(k);
        }
        for (int l = 2; l <= i; l++)
        {
            System.out.print(l);
        }

        System.out.println();
    }

    for (int i = 3; i >= 1; i--)
    {
        int n = 3;

        for (int j = 0; j <= n - i; j++)
        {
            System.out.print(" ");
        }
        for (int k = i; k >= 1; k--)
        {
            System.out.print(k);
        }
        for (int l = 2; l <= i; l++)
        {
            System.out.print(l);
        }

        System.out.println();
    }


My output:

Enter height: 
12
1
212
32123
4321234
543212345
65432123456
7654321234567
876543212345678
98765432123456789
109876543212345678910
1110987654321234567891011
12111098765432123456789101112

It prints correctly, but with no spacing... Would I need another for loop with a println that just prints a space under the first for loop?

Also, if I did that would it still work for double digit heights such as 12?

I would greatly appreciate help, thank you.

Upvotes: 0

Views: 103

Answers (1)

Saif Ahmad
Saif Ahmad

Reputation: 1171

You just need to play around with spaces.

 for (int i = 1; i <= height; i++) {

    int n = height;
    int n2 = height + 1;
    for (int j = 1; j <= n - i; j++) {
        System.out.print("" + String.format("%3s", " ") + " ");
    }
    for (int k = i; k >= 1; k--) {
        System.out.print("" + String.format("%3s", k) + " ");
    }
    for (int l = 2; l <= i; l++) {
        System.out.print("" + String.format("%3s", l) + " ");
    }
    System.out.println();
    System.out.println();
}

OUTPUT: For height 10 

                                      1 

                                  2   1   2 

                              3   2   1   2   3 

                          4   3   2   1   2   3   4 

                      5   4   3   2   1   2   3   4   5 

                  6   5   4   3   2   1   2   3   4   5   6 

              7   6   5   4   3   2   1   2   3   4   5   6   7 

          8   7   6   5   4   3   2   1   2   3   4   5   6   7   8 

      9   8   7   6   5   4   3   2   1   2   3   4   5   6   7   8   9 

 10   9   8   7   6   5   4   3   2   1   2   3   4   5   6   7   8   9  10

Upvotes: 2

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