java.lang.ClassCastException

是指类型转换出错

当前者的域小于后者的时候出现

譬如说：前者A是子类的对象，而后者B是父类的对象

若使用A = B;就会抛出java.lang.ClassCastException

		List<CustomerVO> customers=  (List<CustomerVO>) new CustomerVO();
		List<CustomerVO> customers = new ArrayList<CustomerVO>();

上面一种写法就是会报出这样的错误的，因为CustomerVO 不属于List的子类

时间： 2024-11-25 17:50:16

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