removeAllElements() method is available in java.util package.
removeAllElements()方法在java.util包中可用。
removeAllElements() method is used to remove all the existing elements from this Vector.
removeAllElements()方法用于从此Vector中删除所有现有元素。
removeAllElements() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
removeAllElements()方法是一个非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。
removeAllElements() method does not throw an exception at the removing elements.
removeAllElements()方法不会在移除元素上引发异常。
Syntax:
句法：
public void removeAllElements();Parameter(s):
参数：
It does not accept any parameter.
它不接受任何参数。
Return value:
返回值：
The return type of the method is void, it returns nothing.
该方法的返回类型为void ，不返回任何内容。
Example:
例：
// Java program to demonstrate the example // of void removeAllElements() method of Vector import java.util.*;public class RemoveAllElementsOfVector { public static void main(String[] args) { // Instantiates a Vector object with // initial capacity of "10" Vector < String > v = new Vector < String > (10); // By using add() method is to add the // elements in this v v.add("C"); v.add("C++"); v.add("JAVA"); // Display Vector System.out.println("v: " + v); // By using removeAllElements() method // is to remove all the existing elements v.removeAllElements(); // Display updated vector System.out.println("v.removeAllElements(): " + v); }}Output
输出量
v: [C, C++, JAVA]v.removeAllElements(): []翻译自: https://www.includehelp.com/java/vector-removeallelements-method-with-example.aspx