OldStyle.java Source code

Introduction

Here is the source code for OldStyle.java

Source

/*
Java 2, v5.0 (Tiger) New Features
by Herbert Schildt
ISBN: 0072258543
Publisher: McGraw-Hill/Osborne, 2004
*/

import java.util.*;

public class OldStyle {
    public static void main(String args[]) {
        ArrayList list = new ArrayList();

        // These lines store strings, but any type of object 
        // can be stored.  In old-style code, there is no  
        // convenient way restrict the type of objects stored 
        // in a collection 
        list.add("one");
        list.add("two");
        list.add("three");
        list.add("four");

        Iterator itr = list.iterator();
        while (itr.hasNext()) {

            // To retrieve an element, an explicit type cast is needed 
            // because the collection stores only Object. 
            String str = (String) itr.next(); // explicit cast needed here. 

            System.out.println(str + " is " + str.length() + " chars long.");
        }
    }
}