Java AbstractSequentialList conatinsAll()用法及代码示例

Java AbstractSequentialList的containsAll()方法用于检查两个Collection是否包含相同的元素。它使用一个集合作为参数，如果该集合的所有元素都存在于另一个集合中，则返回True。

用法:

public boolean containsAll(Collection C)

参数：参数C是一个Collection。此参数表示需要在此集合中检查其元素出现情况的集合。

返回值：如果此集合包含其他Collection的所有元素，则该方法返回True，否则返回False。

以下示例程序旨在说明AbstractSequentialList.conatinsAll()方法：

程序1:

// Java code to illustrate 
// AbstractSequentialList containsAll() 
  
import java.util.*; 
  
class AbstractSequentialListDemo { 
    public static void main(String args[]) 
    { 
  
        // Creating an empty Collection 
        AbstractSequentialList<String> 
            abs = new LinkedList<String>(); 
  
        // Use add() method to 
        // add elements in the collection 
        abs.add("Geeks"); 
        abs.add("for"); 
        abs.add("Geeks"); 
        abs.add("10"); 
        abs.add("20"); 
  
        // prints the list 
        System.out.println("AbstractSequentialList 1:"
                           + abs); 
  
        // Creating another empty Collection 
        AbstractSequentialList<String> 
            abs2 = new LinkedList<String>(); 
  
        // Use add() method to 
        // add elements in the collection 
        abs2.add("Geeks"); 
        abs2.add("for"); 
        abs2.add("Geeks"); 
        abs2.add("10"); 
        abs2.add("20"); 
  
        // prints the list 
        System.out.println("AbstractSequentialList 2:"
                           + abs2); 
  
        // Check if the collection 
        // contains same elements 
        System.out.println("\nBoth the collections same:"
                           + abs.containsAll(abs2)); 
    } 
}

输出：

AbstractSequentialList 1:[Geeks, for, Geeks, 10, 20]
AbstractSequentialList 2:[Geeks, for, Geeks, 10, 20]

Both the collections same:true

程序2:

// Java code to illustrate boolean containsAll() 
  
import java.util.*; 
  
class AbstractSequentialListDemo { 
    public static void main(String args[]) 
    { 
  
        // Creating an empty Collection 
        AbstractSequentialList<String> 
            abs = new LinkedList<String>(); 
  
        // Use add() method to 
        // add elements in the collection 
        abs.add("Geeks"); 
        abs.add("for"); 
        abs.add("Geeks"); 
  
        // prints the list 
        System.out.println("AbstractSequentialList 1:"
                           + abs); 
  
        // Creating another empty Collection 
        AbstractSequentialList<String> 
            abs2 = new LinkedList<String>(); 
  
        // Use add() method to 
        // add elements in the collection 
        abs2.add("10"); 
        abs2.add("20"); 
  
        // prints the list 
        System.out.println("AbstractSequentialList 2:"
                           + abs2); 
  
        // Check if the collection 
        // contains same elements 
        System.out.println("\nAre both collections same:"
                           + abs.containsAll(abs2)); 
    } 
}

输出：

AbstractSequentialList 1:[Geeks, for, Geeks]
AbstractSequentialList 2:[10, 20]

Are both collections same:false

相关用法

注：本文由纯净天空筛选整理自Code_r大神的英文原创作品 AbstractSequentialList conatinsAll() method in Java with Example。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。