Cannot instantiate the type List

简介: 在使用java.util.List;的时候,把语句写成了:List arr = new List();导致错误:Cannot instantiate the type List正确写法是:List arr = new ArrayList();

在使用java.util.List;的时候,把语句写成了:

List<Integer> arr = new List<Integer>();

导致错误:

Cannot instantiate the type List<Integer>

正确写法是:

List<Integer> arr = new ArrayList<Integer>();

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