這個Dome告訴你 編譯時可能存在其它結(jié)果,導(dǎo)致數(shù)據(jù)不安全

public?static?void?main(String[]?args)?{
????SynchronizedDemo?synchronizedDemo=new?SynchronizedDemo();

???????synchronizedDemo.new?ReadWriteThread(true).start();
???????synchronizedDemo.new?ReadWriteThread(false).start();
???


}

public?static?void?main(String[]?args)?{
????SynchronizedDemo?synchronizedDemo=new?SynchronizedDemo();
????synchronizedDemo.new?ReadWriteThread(false).start();
???????synchronizedDemo.new?ReadWriteThread(true).start();
???


}

顛倒下模擬編譯時可能出現(xiàn)的情況就行啦