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Frontend Developer Roadmap 2024
Frontend development means to design the face of a website or application. It involves working on the appearance of the website. Building interactive buttons, using images...
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Convert ArrayList to Vector in Java
There are several ways to convert ArrayList to Vector. We can use a vector constructor for converting ArrayList to vector. We can read ArrayList elements one by one and ad...
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Java
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Java-Vector
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How to Convert Two Arrays Containing Keys and Values to HashMap in Java?
HashMap is part of the Collections framework of java. It stores the data in the form of key-value pairs. These values of the HashMap can be accessed by using their respect...
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Java
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How to Add Custom Class Objects to the TreeSet in Java?
TreeSet is an implementation of the SortedSet interface in java that uses a red-black tree for storage. By default, It maintains an ascending order. It contains unique ele...
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Java
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How to Avoid Duplicate User Defined Objects in TreeSet in Java?
TreeSet class in Java is part of Java’s collections framework which implements the NavigableSet interface, which provides functionalities to navigate through the SortedSet...
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Java Program to Delete a Node From the Ending of the Circular Linked List
In this article, we will learn about deleting a node from the ending of a circular linked list. Consider the linked list as shown below:Example:Input : 5-3-4-(head node)Ou...
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Linked Lists
Java
Java Programs
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How to Print all Keys of the LinkedHashMap in Java?
LinkedHashMap is a predefined class in Java that is similar to HashMap, contains a key and its respective value. Unlike HashMap, In LinkedHashMap insertion order is preser...
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Java Program to Find Laplacian Matrix of an Undirected Graph
The Laplacian matrix, also called the graph Laplacian, admittance matrix, Kirchhoff matrix or discrete Laplacian, is a matrix representation of a graph. To find the Laplac...
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Java
Data Structures
Java Programs
Change the line opacity in Matplotlib
In this article, we will learn how to Create the line opacity in Matplotlib. Let's discuss some concepts :A line chart or line graph may be a sort of chart which displays ...
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Python
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Python-matplotlib
Removing all Mapping From HashMap in Java
Maps are used for when you want to associate a key with a value and Lists are an ordered collection. Map is an interface in the Java Collection Framework and a HashMap is ...
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Java
Java Programs
Java-HashMap
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Remove the legend border in Matplotlib
In this article, we will learn how to Remove the legend border in Matplotlib. Let's discuss some concepts :A legend is an area describing the elements of the graph. In the...
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Python
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Python-matplotlib
Create a stacked bar plot in Matplotlib
In this article, we will learn how to Create a stacked bar plot in Matplotlib. Let's discuss some concepts:Matplotlib is a tremendous visualization library in Python for 2...
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Python
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Python-matplotlib
Reverse Order of All Elements of Java Vector
Vector class Implements a dynamic array means it can shrink and expand its size as required just likely having the same operations like that in the arrays. Don't confuse i...
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Java
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Java-Vector
How to Change the Comparator to Return a Descending Order in Java TreeSet?
Comparator interface is used to order the objects of user-defined classes. A comparator object is capable of comparing two objects of two different classes. TreeSet is one...
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Java
Java Programs
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Rotating Images using OpenCV in Java
Image rotation is a common image processing routine used to rotate images at any desired angle. This helps in image reversal, flipping, and obtaining an intended view of t...
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Java
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Minimum substring reversals required to make given Binary String alternating
Given a binary string S of length N, the task is to count the minimum number substrings of S that is required to be reversed to make the string S alternating. If it is not...
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