[Homework] Help with using Methods and Parameters

[O_mini]

Hello,

My assignment is to create a christmas tree using methods with defined parameters.
1) Print the tree at position 50 (50 spaces in)
2) Call the following Triangle (2,6) (six rows without the first 2 printed)
3) and the 1st row of these cut off triangles with the symbol @
4) Using the same principles create a rectangle as the trunk, and a space at the top of the tree to the top of the window

I have this much done, but I have NO idea what I'm supposed to do next, or how to go about it. Any help would be great.

// This program uses methods to recreate the christmas
// tree program

public class newTree
{
	public static void main(String[] args)
	{
		Rectangle();
		Triangle();
		Triangle();
		Triangle();
		Rectangle();
	}
	public static void Triangle(int start, int height)
	{
		// Code to print a triangle
		int i, j,l;
		String str;

		str="@@@#####BHHA&Gh93X25Sisr;,." ;
		l=str.length()-1;

		for (i=0;i<10;i++)
		{
			for(j=0;j<50-i;j++)
			System.out.print(' ');

			for(j=0;j<2*i+1;j++)
		  	System.out.print(str.charAt( (int) ( Math.round(l*j/(2*i+1.0))) ) );
		System.out.println();
		}
	}

	public static void Rectangle(int height, int width)
	{
		// Code for rectangle
		int i,j;

		for (i=0;i<10;i++)
		{
			for(j=0;j<5;j++)
			System.out.print('*');
		System.out.println();
		}
	}


}