I want Java to process the input on the command prompt.

package Fibonacci sequence;

import java.util.InputMismatchException;
import java.util.Scanner;

public class Fibonacci {
     /*
     * I want to show the nth term of the Fibonacci sequence
     */

    int fibonacci_number[];
    int number;
    intn;

    // Execute
    public static void main(String args[]){
        new Fibonacci();
    }

    public Fibonacci(){
        System.out.println("Let me look at the nth term of the Fibonacci sequence.");
        System.out.println("You can type as many as you like.");

           Scanner scan = new Scanner (System.in); // Key Events
           try{
               int input = scan.nextInt();
               fibonacci_number = new int [ input ]; // array generation
               fibonacci_number[0] = 0;

               fibonacci_number[1] = 1;
               calculation(input);
           }catch(InputMismatchExceptione) {// If input is non-numeric
               System.out.println("Are you telling me to put in a number?");
               return;
           }

        fibonacci_number = new int [n];
    }

    public void calculation(intx){
        n = x; // Enter characters to n
        if(n<3) {// If the input was less than 3
            Show if(n==1){//first(0)
                printresult(fibonacci_number[0]);
            }
            else if(n==2){// Display second (1)
                printresult(fibonacci_number[1]);
            }
        } else {// Enter the loop
            for(inti=0;i<n-2;i++){
                int two_before=i;// 2pcs
                int before = i++; // 1 previous
                intans=fibonacci_number [two_before]+fibonacci_number [before];
                fibonacci_number [i+2] =ans;
            }

            printresult(fibonacci_number[n]); // Display Calculation Results
        }

    }
    // View Results
    public void printresult(ints) {
        System.out.println(The number of items in the Fibonacci column is "+s+".");
    }
}