} } 运行可以看出会出现ClassCastException:1 2 Exception in thread"main"java.lang.ClassCastException:java.lang.String cannot be cast to java.lang.Integer at javaBasic.generic.TestArrayList.main(TestArrayList.java:30)想问的...
1 2 Exception in thread"main"java.lang.ClassCastException:java.lang.String cannot be cast to java.lang.Integer at javaBasic.generic.TestArrayList.main(TestArrayList.java:30)想问的问题是:”这Object对象属性,怎么不能强转呢...