Java AbstractSequentialList set()用法及代码示例

Java.util.AbstractSequentialList的set()方法用于将使用LinkedList类创建的顺序列表中的任何特定元素替换为另一个元素。这可以通过在set()方法的参数中指定要替换的元素的位置和新元素来完成。

用法:

AbstractSequentialList.set(int index, Object element)

参数：该函数接受两个参数，分别说明如下。

index：这是整数类型，是指要从列表中替换的元素的位置。
element：这是将替换现有元素的新元素，并且与顺序列表具有相同的对象类型。

返回值：该方法从顺序列表中返回先前的值，该值被新值替换。

以下示例程序旨在说明Java.util.AbstractSequentialList.set()方法：

范例1：

// Java code to illustrate set() 
  
import java.util.*; 
import java.util.AbstractSequentialList; 
  
public class AbstractSequentialListDemo { 
    public static void main(String args[]) 
    { 
        // Creating an empty AbstractSequentialList 
        AbstractSequentialList<String> 
            absqlist = new LinkedList<String>(); 
  
        // Use add() method to add elements in the list 
        absqlist.add("Geeks"); 
        absqlist.add("for"); 
        absqlist.add("Geeks"); 
        absqlist.add("10"); 
        absqlist.add("20"); 
  
        // Displaying the AbstractSequentialList 
        System.out.println("AbstractSequentialList:"
                           + absqlist); 
  
        // Using set() method to replace Geeks with GFG 
        System.out.println("The Object that is replaced is:"
                           + absqlist.set(2, "GFG")); 
  
        // Using set() method to replace 20 with 50 
        System.out.println("The Object that is replaced is:"
                           + absqlist.set(4, "50")); 
  
        // Displaying the modified linkedlist 
        System.out.println("The new List is:" + absqlist); 
    } 
}

输出：

AbstractSequentialList:[Geeks, for, Geeks, 10, 20]
The Object that is replaced is:Geeks
The Object that is replaced is:20
The new List is:[Geeks, for, GFG, 10, 50]

范例2：

// Java code to illustrate set() 
  
import java.util.*; 
import java.util.AbstractSequentialList; 
  
public class AbstractSequentialListDemo { 
    public static void main(String args[]) 
    { 
  
        // Creating an empty AbstractSequentialList 
        AbstractSequentialList<Integer> 
            absqlist = new LinkedList<Integer>(); 
  
        // Use add() method to add elements in the list 
        absqlist.add(50); 
        absqlist.add(40); 
        absqlist.add(30); 
        absqlist.add(20); 
        absqlist.add(10); 
  
        // Displaying the AbstractSequentialList 
        System.out.println("AbstractSequentialList:"
                           + absqlist); 
  
        // Using set() method to replace 40 with 400 
        System.out.println("The Object that is replaced is:"
                           + absqlist.set(1, 400)); 
  
        // Using set() method to replace 10 with 100 
        System.out.println("The Object that is replaced is:"
                           + absqlist.set(4, 100)); 
  
        // Displaying the modified linkedlist 
        System.out.println("The new List is:" + absqlist); 
    } 
}

输出：

AbstractSequentialList:[50, 40, 30, 20, 10]
The Object that is replaced is:40
The Object that is replaced is:10
The new List is:[50, 400, 30, 20, 100]

相关用法

注：本文由纯净天空筛选整理自Chinmoy Lenka大神的英文原创作品 AbstractSequentialList set() method in Java with Examples。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。