Java并发编程从入门到精通

Hashtable；

 1 /**
 2  * Hashtable的简单用法
 3  */
 4 package thread03;
 5 
 6 import java.util.Hashtable;
 7 
 8 public class HashtableTest01
 9 {
10     public static void main(String[] args)
11     {
12         Hashtable<String,Integer> ht = new Hashtable<String,Integer>();
13         ht.put("one", 1);
14         ht.put("two", 2);
15         ht.put("three", 3);
16         
17         Integer num = ht.get("two");
18         if(null != num)
19         {
20             System.out.println("two = " + num);
21         }
22     }
23 }

Hashtable的简单用法

ConcurrentHashMap；

 1 /**
 2  * ConcurrentHashMap的简单用法
 3  */
 4 package thread03;
 5 
 6 import java.util.concurrent.ConcurrentHashMap;
 7 
 8 public class ConcurrentHashMapTest01
 9 {
10     public static void main(String[] args)
11     {
12         ConcurrentHashMap<String,Integer> ch = new ConcurrentHashMap<String,Integer>();
13         ch.put("one", 1);
14         ch.put("two", 2);
15         ch.put("three", 3);
16         
17         System.out.println(ch.get("two"));
18         
19         if(ch.containsKey("one") && ch.get("one").equals(1))
20         {
21             ch.remove("one");
22         }
23     }
24 }

ConcurrentHashMap的简单用法

CopyOnWriteArrayList；

 1 /**
 2  * CopyOnWriteArrayList的简单用法
 3  */
 4 package thread03;
 5 
 6 import java.util.Iterator;
 7 import java.util.concurrent.CopyOnWriteArrayList;
 8 
 9 public class CopyOnWriteArrayListTest01
10 {
11     public static void main(String[] args)
12     {
13         CopyOnWriteArrayList<String> cwal = new CopyOnWriteArrayList<String>();
14         cwal.add("one");
15         cwal.add("three");
16         cwal.add(1, "two");
17         
18         System.out.println(cwal.get(1));
19         
20         if(cwal.contains("three"))
21         {
22             Iterator<String> it = cwal.iterator();
23             while(it.hasNext())
24             {
25                 System.out.println(it.next());
26             }
27         }
28     }
29 }

CopyOnWriteArrayList的简单用法

CopyOnWriteArraySet；

 1 /**
 2  * CopyOnWriteArraySet的简单用法
 3  */
 4 package thread03;
 5 
 6 import java.util.Iterator;
 7 import java.util.concurrent.CopyOnWriteArraySet;
 8 
 9 public class CopyOnWriteArraySetTest01
10 {
11     public static void main(String[] args)
12     {
13         CopyOnWriteArraySet<String> cwas = new CopyOnWriteArraySet<String>();
14         cwas.add("one");
15         cwas.add("two");
16         cwas.add("three");
17         
18         if(cwas.contains("three"))
19         {
20             Iterator<String> it = cwas.iterator();
21             while(it.hasNext())
22             {
23                 System.out.println(it.next());
24             }
25         }
26     }
27 }

CopyOnWriteArraySet的简单用法

Vector；

 1 /**
 2  * Vector的简单用法
 3  */
 4 package thread03;
 5 
 6 import java.util.Iterator;
 7 import java.util.Vector;
 8 
 9 public class VectorTest01
10 {
11     public static void main(String[] args)
12     {
13         Vector<String> vector = new Vector<String>();
14         vector.addElement("one");
15         vector.addElement("two");
16         vector.addElement("three");
17         vector.removeElement("two");
18         
19         if(vector.contains("three"))
20         {
21             Iterator<String> it = vector.iterator();
22             while(it.hasNext())
23             {
24                 System.out.println(it.next());
25             }
26         }
27     }
28 }

Vector的简单用法

StringBuffer；