Vector：可以往里添加任何类型的字段

<strong><span style="color: rgb(51, 51, 51); font-family: arial, sans-serif; font-size: 14px; line-height: 24px; text-indent: 28px;">Java.util.Vector提供了向量（Vector）类以实现类似</span><a target=_blank target="_blank" href="http://baike.haosou.com/doc/6085118.html" style="color: rgb(19, 110, 194); text-decoration: none; font-family: arial, sans-serif; font-size: 14px; line-height: 24px; text-indent: 28px;">动态数组</a><span style="color: rgb(51, 51, 51); font-family: arial, sans-serif; font-size: 14px; line-height: 24px; text-indent: 28px;">的功能</span></strong>

package qq;import java.util.Vector;public class TestVector {public static void main(String args[]){Vector<String> vec = qest();System.out.println(vec.get(0));System.out.println(vec.get(1));}static Vector<String> qest(){Vector<String> vec = new Vector<String>();   //如果不添加String参数，那么vec可以add任何数据类型String sum = "123.12";String name = "123";vec.add(sum);vec.add(name);Vector ss = new Vector();boolean f = false;int m = 3;ss.add(f);ss.add(m);System.out.println(ss.get(0));System.out.println(ss.get(1));return vec;}}