Java Program to calculate Simple Interest

import java.io.*;
import java.util.*;
public class Interest{
    Scanner scan=new Scanner(System.in);
    int year;
    float prin, rate;
    double amount, interest;
    public void input()throws Exception{
        System.out.println("Principle: ");
        prin=scan.nextFloat();
        System.out.println("Rate: ");
        rate=scan.nextFloat();
        System.out.println("Time: ");
        year=scan.nextInt();
    }

    public void compute(){
        interest=prin*(Math.pow((1+rate),year));
        amount=interest+prin;
    }

    public void display(){
        System.out.println("Principle: "+prin+"\nRate: "+rate+"\nTime: "+year+"\nInterest: "+interest+"\nAmount: "+amount);
    }

    public static void main(String[] args)throws Exception{
        Interest obj=new Interest();
        obj.input();
        obj.compute();
        obj.display();
    }
}