CODEWITHSUNDEEP
javaloopsfor-loopnested-loops
pvttunt
pvttunt

Reputation: 33

Trying to print an increasing number pyramid with lines on the sides, using only nested for loops (Java)

I'm a beginner at Java. I was solving nested for loop questions... Then this question came up. After research and re-tries I couldn't get my head around it. It must be solved using only nested for loops.

This is what the question wants my code to output:

-----1-----
----333----
---55555---
--7777777--
-999999999-

This is as close as I got:

---------1
-------333
-----55555
---7777777
-999999999

This is my code:

for (int line = 1; line <= 9; line+=2) {
    for (int j = 1; j <= (-1 * line + 10); j++) {
        System.out.print("-");
    }
    for (int k = 1; k <= line; k++) {
        System.out.print(line);
    }
    System.out.println();
}

Upvotes: 3

Views: 66

Answers (1)

Lovesh Dongre
Lovesh Dongre

Reputation: 1344

You just need to add another for loop to print - on the right side. Also now the first and the third loop will execute for half the number of times

for (int line = 1; line <= 9; line+=2) {
    for (int j = 0; j <= (-1 * line + 10) / 2; j++) {
        System.out.print("-");
    }
    for (int k = 1; k <= line; k++) {
        System.out.print(line);
    }
    for (int j = 0; j <= (-1 * line + 10) / 2; j++) {
        System.out.print("-");
    }
    System.out.println();
}

Upvotes: 3

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