清空向量的元素

您可以使用clear()方法删除给定向量中的所有元素。

示例

import java.util.Vector;

public class ClearingElements {
   public static void main(String args[]) {
      Vector vect = new Vector();
      vect.addElement("Java");
      vect.addElement("JavaFX");
      vect.addElement("HBase");
      vect.addElement("Neo4j");
      vect.addElement("Apache Flume");
      
      System.out.println("Elements of the vector :"+vect);
      vect.clear();
      System.out.println("Elements of the vector after clearing it :"+vect);
   }
}

输出

Elements of the vector :[Java, JavaFX, HBase, Neo4j, Apache Flume]
Elements of the vector after clearing it :[]