Using Nested Loops

Display the following: Using loops

Code :

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    1
   21
  321
 4321
54321

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This is my attempt.

Code :

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public class UsingLoops {
    public static void main(String[] args) {
        for (int line = 1; line <= 5; line++) {
            for (int j = 1; j <= (-1 * line + 5); j++) {
                System.out.print(" ");
            }
            System.out.print(line);
            for (int j = 1; j >= (-1 * line + 3); j--) {
                System.out.print(j + 3);
            }
            System.out.println();
        }
    }
}

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This is the output that I get:

Code :

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    1
   24
  343
 4432
54321

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What am I doing wrong? How do I fix my code?
It appears the space aren't showing when I created this thread. There is supposed to be 4 spaces before the first line, 3 spaces before the second line and so on.

Quote:

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What am I doing wrong? How do I fix my code?

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Your code is not printing the biggest number down to 1 on each line. Compute the largest number for the line and decrement it by 1 until you get to 1.
It looks like your leading spaces are ok.

Ok thanks. I managed to fix my code and get the right output. Here it is.

Code :

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public class UsingLoops {
	public static void main(String[] args) {
		for (int line = 1; line <= 5; line++) {
    			for (int j = 1; j <= (-1 * line + 5); j++) {
        		System.out.print(" ");
			}
			for (int j = line; j >= 1; j--) {
			System.out.print(j);
			}
    		System.out.println();
		}
	}
}

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this is my answer....
try this....

...

Please wrap your posted code in code tags to preserve formatting.

Quote:

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Originally Posted by ravindu

this is my answer....

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Ravindu, please read the forum rules and the following link: http://www.javaprogrammingforums.com...n-feeding.html

Quote:

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Originally Posted by copeg

Ravindu, please read the forum rules and the following link: http://www.javaprogrammingforums.com...n-feeding.html

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So tell me, when you first start learning something at school or university, do they expect you to learn everything on your own, or do they help you solve things ?

I understand your point about spoon feeding, but the guy is asking for help, don't u think he can sit and think if he had to ? and if he knew that he needs help, then he would ask for it ? I don't understand why the strict rules about not posting solutions...you always learn ...even if u took someone else's code and studied it, you would still learn, I'm sure that you can write more than one piece of code to do the exact same thing. so why not post a solution, and let the person asking for help, get the idea, and then try to recode it. Or perhaps if you really want, maybe u can use by pesudo code, instead of complete code, which in a way makes them learn the syntax better.

Quote:

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Originally Posted by Hello_World!

So tell me, when you first start learning something at school or university, do they expect you to learn everything on your own, or do they help you solve things ?

I understand your point about spoon feeding, but the guy is asking for help, don't u think he can sit and think if he had to ? and if he knew that he needs help, then he would ask for it ? I don't understand why the strict rules about not posting solutions...you always learn ...even if u took someone else's code and studied it, you would still learn, I'm sure that you can write more than one piece of code to do the exact same thing. so why not post a solution, and let the person asking for help, get the idea, and then try to recode it. Or perhaps if you really want, maybe u can use by pesudo code, instead of complete code, which in a way makes them learn the syntax better.

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Did you read the link provided above? It contains much of the reasoning behind spoon feeding, which is supported by the moderating team here as well as every other forum you might visit. So I will leave it up to you to read and digest its points. Should you like to continue to discuss, then please make another thread, use the private messaging feature, or start a conversation rather than continuing in this thread