[aremid]

how to write using recursive method for print out example number 123456789987654321. and make 9 as the begin number

[trixt.er]

public class recursion 
{
	private final int max = 9; // Constant
	private static boolean flag = false;	
	void myMethod( int counter)
	{
	   if(flag)
	   {
		System.out.print(counter);
		if (counter == 1)
			return;
		myMethod(--counter);
	   }
	   else
	   {
		   
		  System.out.print(counter);
		  if (counter == max)
		  {
			 flag = true;
			 myMethod(counter);
			 return;
		  }
		  myMethod(++counter);
	   }
	} 
	
	public static void main(String[] args)
	{
		new recursion().myMethod(1);
	}
}

Obviously you can spice it up. This was just a quick hack.

This post has been edited by trixt.er: 28 August 2009 - 11:43 PM

[syfran]

Is this a double post with different accounts or just two people with the same assignment, both ignoring the rules?

And trixter, your making this more complicated than it needs to be.

This post has been edited by syfran: 28 August 2009 - 11:40 PM

[trixt.er]

syfran, on 28 Aug, 2009 - 10:38 PM, said:

And trixter, your making this more complicated than it needs to be.

Quick hack.

[trixt.er]

public class recursion 
{
	private static boolean flag = false;	
	void myMethod(int counter)
	{
 	   System.out.print(counter);
	   if (counter == 9 || flag)
	   {
		   if (counter == 1)  // Base case.
			   return;
		   flag = true;
		   myMethod(--counter);
	   }
	   else
		   myMethod(++counter);
	} 
	
	public static void main(String[] args)
	{
		new recursion().myMethod(1);
	}
}

[trixt.er]

public class recursion 
{
	private static boolean flag = true;	
	void myMethod(int counter)
	{
 	   System.out.print(counter);
 	   if (counter != 9 && flag)
 		  myMethod(++counter);
 	   else if (counter != 1)
 	   {
 		  flag = false;
 		  myMethod(--counter);
 	   }
	} 
	public static void main(String[] args)
	{
		new recursion().myMethod(1);
	}
}

That was fun!

[syfran]

Trixter, the goal here isn't to hand out code. It's to help people to learn programming, you can't do that unless you try.

[pbl]

aremid, on 28 Aug, 2009 - 10:19 PM, said:

how to write using recursive method for print out example number 123456789987654321. and make 9 as the begin number

why 9 ?
based on what rule ?

[vaitalaziz]

Write a recursive method that could print out the numbers 123456789987654321. Go to the next line after each displayed number. Assume that number 9 is a begin number. In your program, identify the base and recursive case.

[Travis1012]

Dream.In.Code has a policy by which we prefer to see a good faith effort on your part before providing source code for homework assignments. Please post the code you have written in an effort to resolve the problem, and other members would be happy to provide some guidance. Be sure to include a description of any errors you are encountering as well.

Please post like this:

Thank you for helping us help you.

This post has been edited by Travis1012: 31 August 2009 - 02:22 AM

[syfran]

Please don't tell me this is the same guy posting for the third time...

[Travis1012]

syfran, on 31 Aug, 2009 - 06:26 PM, said:

Please don't tell me this is the same guy posting for the third time...

Possibly, or it could be a strange coincidence.