java - Unable to sort treemap by key of type float in descending order - 


// should return map sorted in descending order according key  public map<float, string> getsomething() {     map<float,string> x =new treemap(collections.reverseorder());     x.put(float.valueof("5.0"),"string1");     x.put(float.valueof("9.0"),"string2");     x.put(float.valueof("1.0"),"string3");     return x; }


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