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Java AbstractSequentialList addAll()用法及代码示例


AbstractSequentialList的addAll(int index,Collection C)方法用于将作为参数传递给此函数的集合中的所有元素附加到此函数的抽象顺序列表的特定索引或位置。

用法:

boolean addAll(int index, Collection C)

参数:此函数接受上面语法中所示的两个参数,并在下面进行描述。


  • index:此参数为整数数据类型,并指定列表中从容器元素插入位置开始的位置。
  • C:这是一个集合,其元素需要附加。

返回值:如果至少执行了一个附加动作,则该方法返回TRUE。

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

范例1:

// Java code to illustrate addAll() method 
  
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 
        absqlist.add("Geeks"); 
        absqlist.add("for"); 
        absqlist.add("Geeks"); 
        absqlist.add("10"); 
        absqlist.add("20"); 
  
        // Creating a Collection 
        Collection<String> 
            collect = new ArrayList<String>(); 
        collect.add("A"); 
        collect.add("Computer"); 
        collect.add("Portal"); 
        collect.add("for"); 
        collect.add("Geeks"); 
  
        // Displaying the list 
        System.out.println("AbstractSequentialList:"
                           + absqlist); 
  
        // Appending the collection to the list 
        absqlist.addAll(1, collect); 
  
        // Clearing the list using clear() and displaying 
        System.out.println("The new list is:"
                           + absqlist); 
    } 
}
输出:
AbstractSequentialList:[Geeks, for, Geeks, 10, 20]
The new list is:[Geeks, A, Computer, Portal, for, Geeks, for, Geeks, 10, 20]

范例2:

// Java code to illustrate boolean addAll() 
  
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 
        absqlist.add(10); 
        absqlist.add(20); 
        absqlist.add(30); 
        absqlist.add(10); 
        absqlist.add(20); 
  
        // Creating a Collection 
        Collection<Integer> 
            collect = new LinkedList<Integer>(); 
        collect.add(1); 
        collect.add(2); 
        collect.add(3); 
        collect.add(4); 
        collect.add(5); 
  
        // Displaying the list 
        System.out.println("The AbstractSequentialList is:"
                           + absqlist); 
  
        // Appending the collection to the list 
        absqlist.addAll(1, collect); 
  
        // Clearing the list using clear() and displaying 
        System.out.println("The new list is:" + absqlist); 
    } 
}
输出:
The AbstractSequentialList is:[10, 20, 30, 10, 20]
The new list is:[10, 1, 2, 3, 4, 5, 20, 30, 10, 20]


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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 addAll() 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。