Core Java
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Multiple Values for a Single Key in HashMap
A HashMap is a data structure in Java that allows you to store key-value pairs. In a standard HashMap, each…
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List to Long Array
Converting a list to a long[] array is a common task in Java programming. There are multiple ways to achieve…
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Java Sorted Lists
Sorting in Java is the process of arranging elements in a specific order, typically ascending or descending. Java provides several…
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Converting String or String Array to Map in Java
Data manipulation is a common task that Java developers often encounter when developing applications. One particularly useful operation is to…
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Delete Duplicate Values From HashMap in Java
HashMap in Java programming is a widely used data structure that allows application developers to store and manage key-value pairs…
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Java yield switch
In Java 14, the yield keyword is introduced to enhance switch expressions. It allows a value to be returned from…
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Converting int Array to HashSet
Java is a versatile and powerful programming language used for a wide range of applications. Sometimes, you may need to…
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Get First Set Item
A Java Set is a collection that stores unique elements, ensuring that no duplicates are allowed, and maintains (or not)…
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Converting Relative Paths to Absolute Paths in Java
Working with file and directory paths is a common task in Java programming. Java provides a way to convert relative…
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Java Holder Class
In Java, the Holder class is not part of the standard language itself. What we are referring to here is…
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