Java中的ConcurrentSkipListSet add()方法
java.util.concurrent.ConcurrentSkipListSet.add() 方法是Java中的一个内置函数,用于在这个集合中插入一个元素。
语法
ConcurrentSkipListSet.add(E e)
参数: 该函数接受一个参数e,即要插入的元素。
返回值: 该函数返回一个真布尔值。
下面的程序说明了ConcurrentSkipListSet.add()方法。
程序1: 在集合中添加整数。
// Java program to demonstrate add()
// method of ConcurrentSkipListSet
import java.util.concurrent.*;
class ConcurrentSkipListSetAddExample1 {
public static void main(String[] args)
{
// Creating a set object
ConcurrentSkipListSet<Integer> Lset =
new ConcurrentSkipListSet<Integer>();
// Adding elements to this set
for (int i = 10; i <= 50; i += 10)
Lset.add(i);
// Printing elements of the set
System.out.println("The set contains: ");
for (Integer i : Lset)
System.out.print(i + " ");
}
}
输出。
The set contains:
10 20 30 40 50
程序2: 在集合中添加字符串。
// Java program to demonstrate add()
// method of ConcurrentSkipListSet
import java.util.concurrent.*;
class ConcurrentSkipListSetAddExample2 {
public static void main(String[] args)
{
// Creating a set object
ConcurrentSkipListSet<String> Lset =
new ConcurrentSkipListSet<String>();
// Adding elements to this set
Lset.add("alex");
Lset.add("bob");
Lset.add("chuck");
Lset.add("drake");
Lset.add("eric");
// Printing elements of the set
System.out.println("The set contains: ");
for (String i : Lset)
System.out.print(i + " ");
}
}
输出。
The set contains:
alex bob chuck drake eric
**参考资料: ** https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ConcurrentSkipListSet.html#add(E)