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  • 如何根据List<Object>中的Object的某一属性对List进行排序?

    首先是Object类

    public class StuVO {
        private String name;
        private int score;
    
        public StuVO(String name, int srore) {
            this.name = name;
            this.score = srore;
        }
    
        public String getName() {
            return name;
        }
    
        public void setName(String name) {
            this.name = name;
        }
    
        public int getScore() {
            return score;
        }
    
        public void setScore(int srore) {
            this.score = srore;
        }
    }

    然后是处理的代码

    import com.catk.entity.StuVO;
    
    import java.util.ArrayList;
    import java.util.Collections;
    import java.util.Comparator;
    import java.util.List;
    
    public class ListSort {
    
        public static void main(String[] args) {
            List<StuVO> list = new ArrayList<>();
            list.add(new StuVO("AAA",90));
            list.add(new StuVO("BBB",150));
            list.add(new StuVO("CCC",12));
            list.add(new StuVO("DDD",64));
            list.add(new StuVO("EEE",5));
            for(int i = 0;i < list.size();i++){
                System.out.println(list.get(i).getName()+" "+list.get(i).getScore());
            }
            System.out.println("--------");
    
            Collections.sort(list, new Comparator<StuVO>() {
                @Override
                public int compare(StuVO o1, StuVO o2) {
                    int i = o1.getScore() - o2.getScore();
                    return i;
                }
            });
    
            for(int i = 0;i < list.size();i++){
                System.out.println(list.get(i).getName()+" "+list.get(i).getScore());
            }
        }
    }

    通过Collection.sort进行排序。

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  • 原文地址:https://www.cnblogs.com/cykfory/p/10565245.html
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