首页 \ 问答 \ 如何启动泛型类型[重复](How to initiate generic type [duplicate])

如何启动泛型类型[重复](How to initiate generic type [duplicate])

这个问题在这里已有答案:

public interface myInterface<T> {

    public List<T> doWork();

}

public abstract class baseClass<T> implements myInterface<T>{

    protected T obj;
    protected List<T> list;

    public baseClass<T>(){
         //how do I initiate obj?
         //how do I initiate list?
    }   
}

public class myClassA extends baseClass<T> {

 public List<T> doWork()
}

我有这个代码,我想知道如何动态地启动obj和类型T的列表。


This question already has an answer here:

public interface myInterface<T> {

    public List<T> doWork();

}

public abstract class baseClass<T> implements myInterface<T>{

    protected T obj;
    protected List<T> list;

    public baseClass<T>(){
         //how do I initiate obj?
         //how do I initiate list?
    }   
}

public class myClassA extends baseClass<T> {

 public List<T> doWork()
}

I have this code and I was wondering how I could initiate obj and list of type T dynamically.


原文:https://stackoverflow.com/questions/16160053
更新时间:2023-08-18 22:08

最满意答案

如果你用14个逗号作为13个逗号,那么这将起作用:

SELECT * FROM table WHERE column LIKE '%,%,%,%,%,%,%,%,%,%,%,%,%,%'

%匹配任何字符串(包括零长度)。


If you count a string with 14 commas as having 13 commas, then this will work:

SELECT * FROM table WHERE column LIKE '%,%,%,%,%,%,%,%,%,%,%,%,%,%'

% matches any string (including zero length).

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