Java Program to calculate Compound Interest

public class JavaExample {

    public void calculate(int p, int t, double r, int n) {
        double amount = p * Math.pow(1 + (r / n), n * t);
        double cinterest = amount - p;
        System.out.println("Compound Interest after " + t + " years: "+cinterest);
        System.out.println("Amount after " + t + " years: "+amount);
    }
    public static void main(String args[]) {
     JavaExample obj = new JavaExample();
     obj.calculate(2000, 5, .08, 12);
    }
}