privatefinalAtomicReference<String> atomicString =newAtomicReference<>("InitialValue"); publicvoidupdateString(String newValue) { atomicString.set(newValue); } publicString getString() { returnatomicString.get(); } } 在此示例中,AtomicReference<String>用于包装 String 对象。set方法安全地分配新值,而get...
100);publicstaticvoidmain(String[] args){for(inti=0; i <10; i++) {newThread(() -> {synchronized(BankCardTest.class) {// 先读取全局的引用finalBankCardcard=bankCard;// 构造一个新的账户,存入一定数量的钱BankCardnewCard=newBankCard(card.getAccountName(), card.getMoney...
publicclassAtomicReferenceDemo{privatestaticAtomicReference<String>config=newAtomicReference<>("config-v1");publicstaticvoidupdateConfig(){String newValue="config-v2";if(config.compareAndSet("config-v1",newValue)){System.out.println("Configuration updated to "+newValue);}else{System.out.println("Upda...
public void setUserName(String userName) { this.userName = userName; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } } public class Demo { //主线程main,程序入口 public static void main(String[] args) { User user1 = new User("java_wxid",...
public static AtomicReference<String> shared = new AtomicReference<>(); String init="Inital Value"; shared.set(init); //now we will modify that value boolean success=false; while(!success){ String prevValue=shared.get(); // do all the work you need to String newValue=shared.get()+"lets...
privateAtomicReference<String> atomicReference =newAtomicReference<>("initial value"); publicvoidupdateValue(String newValue) { atomicReference.set(newValue); } publicString getValue() { returnatomicReference.get(); } } 如果只需简单的可见性保证,使用volatile可能更简单。
/** 创建一个 初始引用,引用“init String” */ AtomicReference<String> reference =newAtomicReference<String>(intiString); String string = reference.get();//获取当前引用 System.out.println(string); /** reference对象的当前引用与预期值 initString 进行比较。如果相等,则将reference的引用更新为 newString...
(String userName){this.userName=userName;}publicintgetAge(){returnage;}publicvoidsetAge(int age){this.age=age;}}publicclassDemo{//主线程main,程序入口publicstaticvoidmain(String[]args){User user1=newUser("java_wxid",25);User user2=newUser("javaliao",22);AtomicReference<User>atomicReference=...
publicstaticvoidmain(String[]args){ //1、使用null初始值创建新的AtomicReference。 AtomicReference<SimpleObject>atomicReference=newAtomicReference<>(); atomicReference.set(newSimpleObject("test1",10)); SimpleObjectsimpleObject=atomicReference.get();
{AtomicReference<String> ref = new AtomicReference<>("initial");int numberOfThreads = 10;ExecutorService executor = Executors.newFixedThreadPool(numberOfThreads);for (int i = 0; i < numberOfThreads; i++) {executor.submit(() -> ref.compareAndExchange("initial", "changed"));}executor.shut...