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Convert Hex to/from ASCII in Java

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Hello. In this tutorial, we will explore HEX to/from ASCII conversion in Java. 1. Introduction In order to convert ASCII to hexadecimal values in Java is done in the following steps – Covert the string to the character array Convert each string to an integer Convert each integer value to toHexString() Hex to ASCII conversion in Java is done in ...

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How to find a Bipartite Graph?

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Hello there, in this article we will show how to find if a graph is a Bipartite Graph through detailed examples. 1. Introduction In this article, we will define a bipartite graph, explore the properties of a bipartite graph, document an algorithm used to determine whether a graph is bipartite or not, and implement this algorithm in Java. Finally, we ...

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Top 20 Spring-boot interview questions

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1. Introduction Due to the content of this article, in the first section, I will start with a brief introduction about Spring and Spring-Boot framework, what are these frameworks and where to use them. Millions of developers are using Spring and Spring-Boot widely. 1.1. Spring Firstly, let’s start with a brief introduction to Spring frameworks which is a programming and ...

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Radix Sort in Java

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1. Introduction Sorting algorithms were devised in order to make the ordering of elements of a list or array possible. There are many available to choose from, such as Bubble Sort, Quick Sort, Selection Sort, Heap Sort, Merge Sort, just to name a few. Radix Sort is a sorting algorithm that just happens to be fairly efficient. This article will ...

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Collectors to Map in Java

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1. Introduction The Collectors class is in the java.util.stream package. The Collectors class contains static methods which return a Collector to allow for various reduction operations. This article will discuss the toMap and the toConcurrentMap methods. These methods will return a Map or a ConcurrentMap. In addition, we will also be discussing the SortedMap interface. Finally, we conclude this article ...

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Java 8 CompletableFuture thenRun Example

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Hello. In this tutorial, we will explore the Java 8 CompletableFuture thenRun method. 1. Introduction Before diving deep into the practice stuff let us understand the thenRun(…) method we will be covering in this tutorial. CompletableFuture.thenRun() method does not depend on the previous execution CompletableFuture.thenRun() method does not return anything i.e. CompletableFuture<Void> 2. Practice Let us dive into some practice ...

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Java 8 CompletableFuture thenAccept Example

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Hello. In this tutorial, we will explore the Java 8 CompletableFuture thenAccept method. 1. Introduction Before diving deep into the practice stuff let us understand the thenAccept(…) method we will be covering in this tutorial. CompletableFuture.thenAccept() takes a Consumer and returns CompletableFuture 2. Practice Let us dive into some practice stuff from here and I am assuming that you already ...

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Java 8 CompletableFuture supplyAsync Example

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Hello. In this tutorial, we will explore the Java 8 CompletableFuture and explain the supplyAsync method. 1. Introduction Before diving deep into the practice stuff let us understand the supplyAsync(…) method we will be covering in this tutorial. Run a Supplier functional interface asynchronously. A Supplier functional interface does not accept anything but returns a valueThe completableFuture.get() blocks until the ...

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Java 8 CompletableFuture runAsync Example

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Hello. In this tutorial, we will explore the Java 8 CompletableFuture and explain the runAsync method. 1. Introduction Before diving deep into the practice stuff let us understand the runAsync(…) method we will be covering in this tutorial. Used to run a method asynchronously. The method accepts a Runnable functional interface The method does not return any value Supports the ...

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Java 8 Stream API – limit() & skip() Example

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Hello. In this tutorial, we will explore the Stream API: limit() and skip() methods introduced in Java 8. 1. Introduction Before diving deep into the practice stuff let us understand the methods we will be covering in this tutorial. The skip() method discards the first n elements of a stream. n cannot be a negative number and if it is ...

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