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How do I copy the contents of one ArrayList into another?

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傲寒
傲寒 2020-11-27 10:46

I have some data structures, and I would like to use one as a temporary, and another as not temporary.

ArrayList myObject = new ArrayList

        
      
      
      

        

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                 难免孤独 
              
              
    
                
                   难免孤独
                                             
                
                
                (楼主)
            
              
                  
    
                2020-11-27 11:18
              
    

            
    
            
    
              
              

    You need to clone() the individual object. Constructor and other methods perform shallow copy. You may try  Collections.copy method.
    
    
    
             
    
                                                        
    
            
    
            
    
              
                
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