Java线程：新特征-锁（上）(4)

**
* 信用卡账户，可随意透支
*/
class MyCount {
        private String oid;         //账号
        private int cash;             //账户余额

        MyCount(String oid, int cash) {
                this.oid = oid;
                this.cash = cash;
        }

        public String getOid() {
                return oid;
        }

        public void setOid(String oid) {
                this.oid = oid;
        }

        public int getCash() {
                return cash;
        }

        public void setCash(int cash) {
                this.cash = cash;
        }

        @Override
        public String toString() {
                return "MyCount{" +
                                "oid='" + oid + '/'' +
                                ", cash=" + cash +
                                '}';
        }
}