Wartość funkcji trygonometrycznych

import java.awt.EventQueue;
import java.awt.event.*;
import java.io.*;
import javax.swing.*;
import static java.lang.Math.*;

public class Math {

    public static void main(String args[]) {
        Angle alfa = new Angle(Math.PI/4);
        System.out.println("sin(alfa) = "+alfa.sin());
        System.out.println("cos(alfa) = "+alfa.cos());
        System.out.println("tan(alfa) = "+alfa.tan());
        System.out.println("cot(alfa) = "+alfa.cot());
        System.out.println("sec(alfa) = "+alfa.sec());
        System.out.println("csc(alfa) = "+alfa.csc());
    }
}

 

        Double alfa = new Double(Math.PI/4);
        System.out.println("sin(alfa) = "+sin(alfa));