I am trying to understand how to work with TreeSet with Comparator implementation. Code is below. The objects from the numbers Set should be sorted a ...

I use TreeMap to keep daily stocks of a product as shown below: I use day as key and stock as value: I am trying to get the key of lower(4), whi ...

I want to remove values between a certain range in a TreeSet as follows: TreeSet<Integer> ts = new TreeSet<Integer>(); for(int i = 0; i ...

I have two java HashSets, as below: HashSet<Integer> H1 = new HashSet<>(); HashSet<Vector> H2 = new HashSet<>(); As the num ...

This code from the Item 31: Compiles, but gives runtime error: The problem seems to be in using TreeSet instead of HashSet, because there is app ...

I currently have a TreeSet that contains elements of type Pair, and I'm sorting them by their value in descending order. Here is the link to the orig ...

Let's say I am building a TreeSet of an object for which the ordering depends on only one value. I cannot do because if I add two different Foo ob ...

Please refer to the doIt function. Whenever I store my tailset in a variable and perform an action on it, it also changes my ss variable's value. How ...

My understanding ofTreeSet's first() method is that it will take O(log n) based of the explanation in this answer. The explanation in that answer say ...

I have the follwing Person Class - Person.java - Now, I have the following TreeClass instance - Upon printing - So clearly, the two Person i ...

I have the following "Person" class - Now in main class I have made the TreeClass - Upon printing the output is - All is right except "Nipun" ...

Having a very simple example of Java code: And I've thought that every point would be unique, while there is a distance checking and if it's below ...

I know that TreeSet in Java sort its elements in ascending order. For integer it would be 1, 2, 3, 4, 5, for String it would be alphabetical. However, ...

I am making a method to sort using Hashset/Treeset, however I am stopped when it comes to taking my Treeset and trying to return it back from the meth ...

Why do objects put in a TreeSet have to implement the Comparable interface? I'm trying to create a TreeSet containing some objects of my own class but ...

I have a List, i stream it to an Treemap with key and values where the values are a TreeSet and for this TreeSet I what juste add 4 first elements to ...

I need a binary tree with duplicates so I'm trying to use a java's TreeSet and allowing duplicates by passing a comparator that never returns 0. Exam ...

I have a Java program that allows teachers to load and list students with a GPA higher than what has been entered by the user. The program features 3 ...

Hello i've these 3 classes: Here i put the name of a student and the exams he gave In this class i've the student with the constructor but when i t ...

I'm trying to print prime numbers between 2 and 1000 but it is writing some other characters in text file Here is the contents of my TreeSet: Here ...