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java-learning
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master
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java-learning
/
java-multithread
/
src
/
main
/
java
/
com
/
brianway
/
learning
/
java
/
multithread
/
synchronize
/
example9
/
Run9_synchronized03.java
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42 lines (33 loc) · 1.18 KB
master
Breadcrumbs
java-learning
/
java-multithread
/
src
/
main
/
java
/
com
/
brianway
/
learning
/
java
/
multithread
/
synchronize
/
example9
/
Run9_synchronized03.java
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package
com
.
brianway
.
learning
.
java
.
multithread
.
synchronize
.
example9
;
/**
* Created by Brian on 2016/4/12.
*/
/**
* P95
* synchronized(非this对象x)的三个结论
* 1)当多个线程同时执行synchronized(x){}同步代码块时呈现效果
* 2)当其他线程执行x对象中synchronized同步方法时呈同步效果
* 3)当其他线程执行x对象里面的synchronized(this)代码块时,也呈现同步效果
* 验证结论1:
* 当其他线程执行x对象里面的ynchronized(this)代码块时,也呈现同步效果
*/
public
class
Run9_synchronized03
{
public
static
void
main
(
String
[]
args
) {
Service
service
=
new
Service
();
MyObject2
object2
=
new
MyObject2
();
MyThread
a
=
new
MyThread
(
service
,
object2
);
a
.
setName
(
"a"
);
a
.
start
();
Thread2
b
=
new
Thread2
(
object2
);
b
.
setName
(
"b"
);
b
.
start
();
}
}
/*
输出:
testMethod1 ____getLock time=1460468687415 run ThreadName=a
testMethod1 releaseLock time=1460468689415 run ThreadName=a
speedPrintString ____getLock time=1460468689415 run ThreadName=b
*******************
speedPrintString releaseLock time=1460468689415 run ThreadName=b
*/
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