vector.java

java技术内幕源代码,配合书籍看有事半功倍的效果

import java.util.*;

class vector 
{
    public static void main(String args[]) 
    {

        Vector vector = new Vector(5);

        System.out.println("Capacity: " + vector.capacity());

        vector.addElement(new Integer(0));
        vector.addElement(new Integer(1));
        vector.addElement(new Integer(2));
        vector.addElement(new Integer(3));
        vector.addElement(new Integer(4));
        vector.addElement(new Integer(5));
        vector.addElement(new Integer(6));
        vector.addElement(new Double(3.14159));
        vector.addElement(new Float(3.14159));

        System.out.println("Capacity: " + vector.capacity());

        System.out.println("Size: " + vector.size());

        System.out.println("First item: " + (Integer) vector.firstElement());
        System.out.println("Last item: " + (Float) vector.lastElement());

        if(vector.contains(new Integer(3)))
            System.out.println("Found a 3.");
    }
}