New to Java

Hi guys,
i'm a new user of this forum. Excuse me for my english and for my inexperience,but i've a big question and i'm crazing...
I've to define an object that have to represent a file row as:

string double double double

and i called it ROW(it's composed by a string type and by an array of double of lenght 3)

and an array of string of lenght 4

and i called it HEAD

I've a txt file in input so made:

string string string string
string double double double
string double double double
and other rows with the same format

I have to use an array of string to store the headline of file(the first row) and an arraylist of ROW object to store the remaing rows...
I've no idea about code!
Can you help me,please,...it's very important........