Java线程同步的四种方式详解(建议收藏)
public class SynchronizedThread {
class Bank {
private int account = 200;
public int getAccount() {
return account;
}
/**
* 用同步方法实现
*
* @param money
*/
public synchronized void save(int money) {
account += money;
}
/**
* 用同步代码块实现
*
* @param money
*/
public void save1(int money) {
synchronized (this) {
account += money;
}
}
}
class NewThread implements Runnable {
private Bank bank;
public NewThread(Bank bank) {
this.bank = bank;
}
@Override
public void run() {
for (int i = 0; i < 10; i++) {
// bank.save1(10);
bank.save(10);
System.out.println(i + “账户余额为：” + bank.getAccount());
}
}
}
/**
* 建立线程，调用内部类
*/
public void useThread() {
Bank bank = new Bank();
NewThread new_thread = new NewThread(bank);
System.out.println(“线程1”);
Thread thread1 = new Thread(new_thread);
thread1.start();
System.out.println(“线程2”);
Thread thread2 = new Thread(new_thread);
thread2.start();
}
public static void main(String[] args) {
SynchronizedThread st = new SynchronizedThread();
st.useThread();
}
}
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