sequence of integers

I'm new in java so i really don't now what to do in this problem..my teacher wants me do a program for this problem ...anyone help me with this.

A sequence of integers is an "integer chain with rings of r" if the difference between each consecutive number is at most r.
Write a program that tests if a sequence of integers is an integer chain.
The program prompts the user to enter the number of integers (between 2 and 20) and the desired ring width 'r'.
It will output whether the sequence is a chain or where the chain is broken

Sample run 1:
Enter sequence length and ring width: 6 3
Enter 6 integers: 7 10 8 9 12 12
This is an integer chain of length 6 with rings of 3

Please read the forum rules. Double posting is one of them, and is not allowed. Your other post has been removed.

What problem(s) are you having with your code? Please post the code and your questions.
Be sure to wrap your code with[code=java]<YOUR CODE HERE>[/code] to get highlighting

[code =java]
package integersequence;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;

public class IntegerSequence {


public static void main(String[] args) {
BufferedReader dataIn= new BufferedReader(new InputStreamReader (System.in));

String length = "";
System.out.println("Enter the Length:");
try{
length = dataIn.readLine();

} catch (IOException e){
System.out.print("Error");

}
System.out.println("The Length is:"+ length);

String ring = "";
System.out.println("Enter the Ring Width:");
try{
ring = dataIn.readLine();

} catch (IOException e){
System.out.print("Error");

}
System.out.println("The Ring Width is:"+ ring);

String sint = "";
System.out.println("Enter the integers:");
try{
sint = dataIn.readLine();

} catch (IOException e){
System.out.print("Error");

}
System.out.println("The Value of Integers are:"+ sint);
int x;
x= Integer.parseInt(length);

int[] anArray;
anArray = new int[x];

}
}
[/code]
i can't produce the answer
example answer on the output should be:
This is an integer chain of length 6 with rings of 3
or
Integer chain is broken at 6.
or
Sequence length is outside the requirements range.