java.lang.Math.cos(double a)

package com.codingdict;



import java.lang.*;



public class MathDemo {



   public static void main(String[] args) {



      // get two double numbers

      double x = 45.0;

      double y = 180.0;



      // convert them to radians

      x = Math.toRadians(x);

      y = Math.toRadians(y);



      // print their cosine

      System.out.println("Math.cos(" + x + ")=" + Math.cos(x));

      System.out.println("Math.cos(" + y + ")=" + Math.cos(y));

   }

}