//main中Collections.sort(totalList,new MyComparator()); class MyComparator implements Comparator<MerAndMon> { @Override public int compare(MerAndMon m1, MerAndMon m2) { if(m1.getMerId().compareTo(m2.getMerId()) == 1){ return 1 ; }else if(m1.getMerId().compareTo(m2.getMerId()) == -1){ return -1 ; }else{ return 0 ; } } }
java 自定义排序
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