Thank quarks works just fine

Helped me a lot

Is there a way to make this line more intuitive?

Not sure what you mean by this, obviously the Cir constructor needs 6 values (parameters) to initialise the object but these could come from anywhere. They could be read in from a file or generated by the program using random numbers, mouse position or whatever.

One of the problems when using multiple parameters is remembering what each parameter is going to be used for. This should be obvious in the actual method definition because the parameters should be given names that reflect the purpose of the parameter but it is not easy to remember when you come to create the object using the constructor. IDEs like Eclipse have auto complete features that show you what parameters are expected as you type in the code but Processing doesn't.

Maybe another array? 

I think adding another array would only confuse things even if I could think of a reason for having one.

One thing you might be interested in is that Java treats a 2D array as an array of 1D arrays so we could modify the code to this

1. circles[i] = new Cir(c[i]);

This means you are sending a 1D array of ints to the constructor which would look something like:

1. Cir(int[] p) {
2.    x = p[0];
3.    y = p[1];
4.    radius = p[2];
5.    red = p[3];
6.    green = p[4];
7.    blue = p[5];
   
8. }

This has other problems in that the array must have at least six elements to match the parameters, and this must be checked inside the constructor otherwise it might cause an ArrayOutOfBounds exception, and what would your constructor do if there were only 5 elements as there would be nothing to indicate which parameter value is missing.

You might try this out but I certainly would not recommend it in this case. Passing arrays to methods is quite common but normally the values in the arrays represent the same thing. In the example above the array passed has positional, size and colour data. This is not a hard and fast rule and there will be times when you might want to break it.