Java AbstractSequentialList的 size() 方法及示例

Java中AbstractSequentialList的size()方法用于获取AbstractSequentialList的这个实例的大小。它返回一个整数值，该值是AbstractSequentialList的这个实例的大小。

语法

public int size()

参数：该方法不接受任何参数。

返回：该方法返回一个整数值，即AbstractSequentialList实例的大小。

下面的例子说明了AbstractSequentialList.size()方法。

例1:

// Java code to demonstrate the working of
// size() method in AbstractSequentialList
  
import java.util.*;
  
public class GFG {
    public static void main(String[] args)
    {
        // creating an AbstractSequentialList
        AbstractSequentialList<Integer> arr
            = new LinkedList<Integer>();
  
        // using add() to initialize values
        // [1, 2, 3, 4]
        arr.add(1);
        arr.add(2);
        arr.add(3);
        arr.add(4);
  
        // print AbstractSequentialList
        System.out.println("AbstractSequentialList: "
                           + arr);
  
        // Get the size
        // using size()
        System.out.println("Size: "
                           + arr.size());
    }
}

输出。

AbstractSequentialList: [1, 2, 3, 4]
Size: 4

例2
:

// Java code to demonstrate the working of
// size() method in AbstractSequentialList
  
import java.util.*;
  
public class GFG {
    public static void main(String[] args)
    {
        // creating an AbstractSequentialList
        AbstractSequentialList<String> arr
            = new LinkedList<String>();
  
        // using add() to initialize values
        // [Geeks, For, ForGeeks, GeeksForGeeks]
        arr.add("Geeks");
        arr.add("For");
        arr.add("ForGeeks");
        arr.add("GeeksForGeeks");
  
        // print AbstractSequentialList
        System.out.println("AbstractSequentialList: "
                           + arr);
  
        // Get the size
        // using size()
        System.out.println("Size: "
                           + arr.size());
    }
}

输出。

AbstractSequentialList: [Geeks, For, ForGeeks, GeeksForGeeks]
Size: 4