Source of Stringer.java

Structures and functions

public class Stringer 

  1: //: appendixa:Stringer.java
  2: // From 'Thinking in Java, 2nd ed.' by Bruce Eckel
  3: // www.BruceEckel.com. See copyright notice in CopyRight.txt.

  5: public class Stringer {
  6:   static String upcase(String s) {
  7:     return s.toUpperCase();
  8:   }
  9:   public static void main(String[] args) {
 10:     String q = new String("howdy");
 11:     System.out.println(q); // howdy
 12:     String qq = upcase(q);
 13:     System.out.println(qq); // HOWDY
 14:     System.out.println(q); // howdy
 15:   }
 16: } ///:~