enumerations.java

Thinking in JAVA第四版源代码

//: containers/Enumerations.java
// Java 1.0/1.1 Vector and Enumeration.
import java.util.*;
import net.mindview.util.*;

public class Enumerations {
  public static void main(String[] args) {
    Vector<String> v =
      new Vector<String>(Countries.names(10));
    Enumeration<String> e = v.elements();
    while(e.hasMoreElements())
      System.out.print(e.nextElement() + ", ");
    // Produce an Enumeration from a Collection:
    e = Collections.enumeration(new ArrayList<String>());
  }
} /* Output:
ALGERIA, ANGOLA, BENIN, BOTSWANA, BULGARIA, BURKINA FASO, BURUNDI, CAMEROON, CAPE VERDE, CENTRAL AFRICAN REPUBLIC,
*///:~