wait(), notify() 예제
class Account {
String name;
int total;
public Account(String name) {
this.name = name;
}
// 순서 스레드 접근 영역 : 동기화 영역.
synchronized void deposit(int money, String loc) {
if(total>7000){
try {
System.out.println("최대 잔액 초과");
wait(); // wait 스레드 실행시작
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
total = 0;
notify(); // notify 스레드 실행 시작
total += money;
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println(loc+money+total);
}
int getTotal() {
return total;
}
}
class Bank extends Thread{
Account acc; // 계좌 이름
int money; // 입금액
String loc; //지점이름
public Bank(Account acc, int money, String loc) {
this.acc = acc;
this.money = money;
this.loc = loc;
}
@Override
public void run() {
acc.deposit(money, loc);
}
}
public class AccountTest {
public static void main(String[] args) {
Account a1 = new Account("내 계좌");
Bank b1 = new Bank(a1,1000,"강남은행");
Bank b2 = new Bank(a1,2000,"광주은행");
Bank b3 = new Bank(a1,3000,"대구은행");
Bank b4 = new Bank(a1,4000,"부산은행");
b1.start();
b2.start();
b3.start();
b4.start();
}
}
AccountTest.java