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Sort objects in ArrayList by date?

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生来不讨喜
生来不讨喜 2020-11-22 06:58

Every example I find is about doing this alphabetically, while I need my elements sorted by date.

My ArrayList contains objects on which one of the datamembers is a

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  • 北恋
    北恋 (楼主)
    2020-11-22 07:26

    Pass the ArrayList In argument.

        private static void order(ArrayList list) {

    Collections.sort(list, new Comparator() {

        public int compare(Object o2, Object o1) {

            String x1 =  o1.Date;
            String x2 =  o2.Date;

                return  x1.compareTo(x2);

        }
    });
}

    
    
             
    
                                                        
    
            
            
    
              
                
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