JAVA利用多线程synchronized机制实现银行账户存取款线程安全------JAVA

怼烎@ 2024-03-22 12:33 74阅读 0赞

>     public class AccountTest
>     {
>         public static void main(String[] args) {
>             Account account = new Account();
>             Customer customer = new Customer(account,"甲");
>             Customer customer1 = new Customer(account,"乙");
>             customer1.start();
>             customer.start();
>         }
>     }
>     
>     class Account
>     {
>         private double balance;
>         public synchronized void deposit(double amount)
>         {
>             if(amount > 0)
>             {
>                 balance += amount;
>             }
>             try {
>                 Thread.sleep(1000);
>             } catch (InterruptedException e)
>             {
>                 throw new RuntimeException(e);
>             }
>             System.out.println("存款"+balance);
>         }
>     }
>     
>     class Customer extends Thread
>     {
>         Account account;
>         public Customer(Account account)
>         {
>             this.account = account;
>         }
>     
>         public Customer(Account account,String name)
>         {
>             super(name);
>             this.account = account;
>         }
>     
>         public void run()
>         {
>             for (int i = 0; i < 3; i++)
>             {
>                 account.deposit(1000);
>             }
>         }
>     }
> 
> public class AccountTest  
> \{  
> public static void main(String\[\] args) \{  
> Account account = new Account();  
> Customer customer = new Customer(account,"甲");  
> Customer customer1 = new Customer(account,"乙");  
> customer1.start();  
> customer.start();  
> \}  
> \}
> 
> class Account  
> \{  
> private double balance;  
> public synchronized void deposit(double amount)  
> \{  
> if(amount > 0)  
> \{  
> balance += amount;  
> \}  
> try \{  
> Thread.sleep(1000);  
> \} catch (InterruptedException e)  
> \{  
> throw new RuntimeException(e);  
> \}  
> System.out.println("存款"+balance);  
> \}  
> \}
> 
> class Customer extends Thread  
> \{  
> Account account;  
> public Customer(Account account)  
> \{  
> this.account = account;  
> \}
> 
> public Customer(Account account,String name)  
> \{  
> super(name);  
> this.account = account;  
> \}
> 
> public void run()  
> \{  
> for (int i = 0; i < 3; i++)  
> \{  
> account.deposit(1000);  
> \}  
> \}  
> \}