algorithm from java code

[ace12364]

Does anyone know how to recognize the steps used/algorithm used within java code.
I dont much a bout java but i need to know the algorithm used in the java code so i can reproduce it in Haskell.

The program is about generating 6 random numbers and a target number, then using the 6 numbers with arithmetic to produce an arithmetic expression that when calculated is the target number.

can anyone help

thanks

[teknomage1]

If you're having trouble with algorithms, Haskell might be a pretty tough introduction to programming. What you've described sounds like it could be done a number of ways. Have you done anything with list comprehensions?

[ace12364]

are you talking about the higher functions map and filter, and the ability to concatenate lists of lists.

Do you understand java, would you be able to recognise what is going on?

[redhead]

What steps, what algorithm, what part of code ????
You aren't displaying anything, it could be any lines of code found anywhere..

Your described problem can be achieved in many ways, but if you need to follow a predefined algorithm, we need to know that aswell or we might not be able to guide you in the right direction.

[ace12364]

Do you understand this? I have added some comments of my own iunderstanding, but i would be grateful someone could justify it?

public int levelbottom(int v)
     //0->0, 1->6, 2->11, 3->15, 4->18, 5->20, 6->21
        {return (21 - ((6-v)*(7-v))/2);
        }        
     
     
             
     public boolean better(int a, int b, int c)
 //Is c closer to a than b is to a?
        {return (((b<c) && (b-a<a-c)) || ((c<b) && (a-c<b-a)));
        }
           
     public int calc(int h, int l, int f) 
     //doing the calculation?   
        {switch (f)
            {case 0:  return h+l; // addition
             case 1:  return h-l; // subtraction
             case 2:  return h*l; // multiplication
             case 3:  return h/l; // division
             default: 
            }
         return 0; // should not arrive here?