      1  /**

      2     This example demonstrates method calls.

      3  */

      4

      5  public class MethodDemo

      6  {

      7     public static void main(String[] args)

      8     {

      9        String greeting = "Hello, World!";

     10        System.out.println(greeting);

     11           // greeting is the argument in this call to the println method

     12        int numberOfCharacters = greeting.length();

     13          // The length method returns a value

     14

     15        System.out.print("numberOfCharacters: ");

     16        System.out.println(numberOfCharacters);

     17

     18        // You can use the return value of one method as an argument of another method

     19

     20        System.out.print("greeting.length(): ");

     21        System.out.println(greeting.length());

     22

     23        // The replace method has two arguments

     24        String river = "Mississippi";

     25        river = river.replace("issipp", "our");

     26        System.out.print("river: ");

     27        System.out.println(river);

     28     }

     29  }