/**
*
*/
Package com.test.testSynchronized;
Import Java.util.HashMap;
Import Java.util.Iterator;
Import Java.util.Map;
Import Java.util.Map.Entry;
/**
*
* Analog Fetch number
* @author Chenshuai
* @ August 18, 2016
* @ 11:37:54
*/
public class Testsynchronized {
Static Map<integer, integer> Map = new Hashmap<integer, integer> ();
Public synchronized Integer Getnumsynmethod () {
int size = Map.size ();
int index = 1+ (int) (Math.random () *size);
Integer tag = map.get (index);
Map.Remove (index);
return tag;
}
public static void Main (string[] args) {
Map.put (1, 1);
Map.put (2, 2);
Map.put (3, 3);
Map.put (4, 4);
Map.put (5, 5);
Map.put (6, 6);
Map.put (7, 7);
Map.put (8, 8);
Map.put (9, 9);
testsynchronized T1 = new testsynchronized ();
testsynchronized t2 = new testsynchronized ();
testsynchronized t3 = new testsynchronized ();
Iterator<entry<integer, integer>> it = Map.entryset (). iterator ();
while (It.hasnext ()) {
Entry<integer, integer> Entry = It.next ();
System.out.println ("Original value is:" +entry.getvalue ());
}
Integer i = T1.getnumsynmethod ();
SYSTEM.OUT.PRINTLN ("Fetch:" +i);
Iterator<entry<integer, integer>> it2 = Map.entryset (). iterator ();
while (It2.hasnext ()) {
Entry<integer, integer> Entry = It2.next ();
System.out.println ("The + i +" is taken, the map value is: "+entry.getvalue ());
}
Integer i2 = T2.getnumsynmethod ();
SYSTEM.OUT.PRINTLN ("Fetch:" +I2);
Iterator<entry<integer, integer>> it3 = Map.entryset (). iterator ();
while (It3.hasnext ()) {
Entry<integer, integer> Entry = It3.next ();
System.out.println ("after" + I2 +), the map value is: "+entry.getvalue ());
}
Integer i3 = T3.getnumsynmethod ();
SYSTEM.OUT.PRINTLN ("Fetch:" +I3);
Iterator<entry<integer, integer>> it4 = Map.entryset (). iterator ();
while (It4.hasnext ()) {
Entry<integer, integer> Entry = It4.next ();
System.out.println ("after" + i3 +), the map value is: "+entry.getvalue ());
}
if (It.hasnext ()) {
Entry<integer, integer> Entry = It.next ();
System.out.println ("Finished value is:" +entry.getvalue ());
}
}
}
Run results
