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How to have Java method return generic list of any type?

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逝去的感伤
逝去的感伤 2020-11-28 07:13

I would like to write a method that would return a java.util.List of any type without the need to typecast anything:

List
8条回答
  • [愿得一人]
    [愿得一人] (楼主)
    2020-11-28 07:29

    Let us have List objectList which we want to cast to List 

    public  List list(Class c, List objectList){        
    List list = new ArrayList<>();       
    for (Object o : objectList){
        T t = c.cast(o);
        list.add(t);
    }
    return list;
}

    
    
             
    
                                                        
    
            
            
    
              
                
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