Java 中的 Vector removeAllElements()方法，示例
原文:https://www . geesforgeks . org/vector-remove alliances-method-in-Java-with-example/
Java . util . Vector . remove Allealements()方法用于移除该向量中的所有组件，并将其大小设置为零。
语法:
Vector.removeAllElements()
参数:该方法不取任何参数
返回值:函数不返回值。
下面的程序说明了 Java . util . vector . remove alloyments()方法。
例 1:
// Java code to illustrate removeAllElements()
import java.util.*;
public class GFG {
public static void main(String args[])
{
// Creating an empty Vector
Vector<String> vector = new Vector<String>();
// Use add() method to add elements into the Vector
vector.add("Welcome");
vector.add("To");
vector.add("Geeks");
vector.add("4");
vector.add("Geeks");
// Displaying the Vector
System.out.println("Vector: " + vector);
// removeAllElementsing the Vector
// using removeAllElements() method
vector.removeAllElements();
// Displaying the final Vector after removeAllElement
System.out.println("The final Vector: " + vector);
}
}
Output:
Vector: [Welcome, To, Geeks, 4, Geeks]
The final Vector: []
例 2:
// Java code to illustrate removeAllElements()
import java.util.*;
public class GFG {
public static void main(String args[])
{
// Creating an empty Vector
Vector<Integer> vector = new Vector<Integer>();
// Use add() method to add elements into the Queue
vector.add(10);
vector.add(15);
vector.add(30);
vector.add(20);
vector.add(5);
// Displaying the Vector
System.out.println("Vector: " + vector);
// removeAllElementsing the Vector
// using removeAllElements() method
vector.removeAllElements();
// Displaying the final Vector after removeAllElement
System.out.println("The final Vector: " + vector);
}
}
Output:
Vector: [10, 15, 30, 20, 5]
The final Vector: []
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