Java Vector removeAllElements()

Java Vector [Java Vector] Java Vector

removeAllElements() Java Vector 0

public void removeAllElements()

java.util.Vector

removeAllElements()

  1. Vector
  2. Vector (size) 0
  3. Vector

void

import java.util.Vector;

public class VectorExample {
    public static void main(String[] args) {
        // Vector
        Vector<String> fruits = new Vector<>();
        fruits.add("Apple");
        fruits.add("Banana");
        fruits.add("Orange");
       
        System.out.println(" Vector: " + fruits);
        System.out.println(": " + fruits.size());
       
        // removeAllElements()
        fruits.removeAllElements();
       
        System.out.println(" Vector: " + fruits);
        System.out.println(": " + fruits.size());
    }
}

 Vector: [Apple, Banana, Orange]
: 3
 Vector: []
: 0

removeAllElements()

  1. Vector
  2. Vector
  3. Vector

1. clear()

removeAllElements() clear() Vector

  • removeAllElements() Vector
  • clear() Collection

2.

Vector removeAllElements()

3.

Vector Vector

Q1: removeAllElements() Vector (capacity)

A1: removeAllElements() (size) 0 Vector trimToSize()

Q2:

A2: removeAllElements() Vector

Q3: void boolean

A3: remove(Object)
clear() Collection
removeElement(Object)
removeAll(Collection)
trimToSize()

removeAllElements() Vector Java ArrayList clear()

Java Vector [Java Vector] Java Vector