cin >> in java?
 

that's my question. i hope this posts, cause it wouldn't the first 2 times i tried

I guess your question is "what is the java equivalent of c++'s cin".
There is no direct thing.You need to import java.io and see the classes in them and look for the one which is suitable for your purpose(example: DataInputStream Class)
Go through the java documentation for the classes in the package "java.io"

As psp mentioned you will need to import the java.io

and then something like this will work just fine:

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

then you can use method like readLine() to read in the input:

int input;

input = Integer.parseInt(br.readLine());