使用Collections给集合排序

Posted 2022-09-14 hq0422

  Collections.sort(ydShips, new Comparator<YdShip>() 
                @Override
                public int compare(YdShip o1, YdShip o2) 
                    if(o1.getNumber()> o2.getNumber())  //number是用来排序的列
                       
             return 1;
                        
            else if(o1.getNumber()==o2.getNumber())
                        
            return 0;
                        
            
                   
             return -1;
                
        
            );