首先,我们需要定义一个实现Comparator接口的类,用于比较Map中的value值大小。以下是代码示例: importjava.util.Comparator;publicclassValueComparatorimplementsComparator<String>{Map<String,Integer>base;publicValueComparator(Map<String,Integer>base){this.base=base;}publicintcompare(Stringa,Stringb){if(base.get(a...
Map<K, V> sortedByValues = new TreeMap<K, V>(valueComparator); sortedByValues.putAll(map); return sortedByValues; } public static void main(String[] args) { HashMap<Long, Double> map = new HashMap<Long, Double>(); map.put(1l, 99.5); map.put(2l, 67.2); map.put(3l, 67.5);...