Java實現銀行存取款
阿新 • • 發佈:2020-01-07
本文例項為大家分享了Java銀行存取款的具體程式碼,供大家參考,具體內容如下
1.不加鎖情況
執行結果:
程式碼:將加鎖情況中加鎖部分進行註釋即可
2.加鎖情況
執行結果
緩衝區程式碼
package Bank; import java.util.LinkedList; public class BankAccount { static double sum=1000; private LinkedList<Object> list = new LinkedList<>(); //存款 public void deposit() { synchronized(list) { System.out.print(list.size()); while(list.size()>1) { System.out.println("暫不支援存款"); try { // System.out.print("wait"); list.wait(); } catch (InterruptedException e) { e.printStackTrace(); //System.out.print("wait"); } } list.add(new Object()); int money=300; sum=sum+money; System.out.println(Thread.currentThread().getName()+"存入了"+money+"元"+"現在共有存款"+sum); list.notifyAll(); } } //取款 public void withdrawal() { synchronized(list) { while(list.size()==0) { // int money=50; // sum=sum-money; System.out.println(Thread.currentThread().getName()+"暫時不支援取款"); try { list.wait(); } catch (InterruptedException e) { e.printStackTrace(); } } list.remove(); int money=200; if(sum>200) { sum=sum-money; System.out.println(Thread.currentThread().getName()+"取出了"+money+"元"+"現在共有存款"+sum); }else { System.out.println("賬戶餘額不足"); } list.notify(); } } }
存款程式碼
package Bank; public class Deposit implements Runnable { private BankAccount bankAccount1; public Deposit() {} public Deposit(BankAccount bankAccount1) { this.bankAccount1=bankAccount1; } @Override public void run() { // TODO Auto-generated method stub while(true) { try { Thread.sleep(2000); bankAccount1.deposit(); } catch (InterruptedException e) { // TODO: handle exception e.printStackTrace(); } } } }
取款程式碼
package Bank; public class Withdrawal implements Runnable{ private BankAccount bankAccount; public Withdrawal() {} public Withdrawal(BankAccount bankAccount) { this.bankAccount=bankAccount; } @Override public void run() { // TODO Auto-generated method stub while(true) { try { Thread.sleep(3000); bankAccount.withdrawal(); } catch (InterruptedException e) { // TODO: handle exception e.printStackTrace(); } } } }
主函式程式碼
package Bank; public class Main { public static void main(String[] args) { BankAccount bankAccount1=new BankAccount(); Thread d1=new Thread(new Deposit(bankAccount1)); Thread d2=new Thread(new Deposit(bankAccount1)); Thread d3=new Thread(new Deposit(bankAccount1)); Thread w1=new Thread(new Withdrawal(bankAccount1)); Thread w2=new Thread(new Withdrawal(bankAccount1)); Thread w3=new Thread(new Withdrawal(bankAccount1)); d1.start(); d2.start(); d3.start(); w1.start(); w2.start(); w3.start(); } }
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以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支援我們。