In java, please Create and then modify your version of the 3N+1 sequence problem

Question

In java, please

Create and then modify your version of the 3N+1 sequence problem so that it includes the function 'threeNSeqLength' which accepts any positive integer and returns the length of the given positive integer's 3N+1 sequence length. This new version of the program should then loop through the first 100 positive integers, storing each integer's 3N+1 sequence length in a ArrayList. One of the outputs should be a console listing of each of the first 100 positive integers, followed by its 3N+1 sequence length. The next output

Explanation / Answer

import java.util.ArrayList;

class Main{
  
      
    static int threeNSeqLength(int N){
        int s = 1;
        //Loop until 1 is reached
        while(N>1){
            if(N%2==0){
                N/=2;
            }
            else{
                N = 3*N+1;
            }
            s++;
        }
        return s;
    }
    public static void main(String[] args) {
        ArrayList<Integer> seq = new ArrayList();
        for(int i=1;i<=100;i++){
            //Calcuate the three sequence length and add to the list
            int ans = threeNSeqLength(i);
            seq.add(ans);
        }
        for(int i=1;i<=100;i++){
            System.out.println(i+" "+seq.get(i-1));
        }
    }
}

OUTPUT :

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