本帖最后由 zl78365336 于 2013-12-6 23:10 编辑
银行卡上有账号是不是单例:
- [/font]
- public class NumberMachine {
-
- private NumberMachine(){}
- private static NumberMachine instance = new NumberMachine();
- public static NumberMachine getInstance(){
- return instance;
- [/color]
- [color=rgb(0, 128, 0)]
复制代码
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