public class Test 
{
    public static void main(String[] args) 
    {
        int x = 4;
        String s  = "cowabunga";
        System.out.println(x);
        System.out.println(s);
        System.out.println(s.charAt(0));
        System.out.println("Test successful!");
        System.out.println(2 + 2 == 4);  //boolean: true/false
        double iq = Math.sqrt(2);//same as Python's floating-point number
        System.out.println(iq);
        System.out.println(Math.cos(0));
        System.out.println(Math.pow(5,3));

        System.out.print("print");
        System.out.println("me");
        System.out.printf("%s + %s = %s\n", 3, 4, 3 + 4);
        System.out.println("some" + "thing");//concatenates
        System.out.println("some" + 5);//concatenates


    }
}