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In today’s programming world, both C++ and Java are popular. Both are the Object object-oriented programming languages. Still, C++ and Java have a different set of features for different use cases. Let’s try to understand the basic difference between C++ and Java. Difference between C++ and Java (C++ vs Java) Property C+...

In this tutorial, we will see a Java program to find duplicate elements in an array. Introduction We will find duplicate elements from an input array as follows: Using the iterative method Using the sorting method Using the HashSet method Using the Java 8 Streams method 1. Find duplicate elements in an array using the iterative met...

Here, we will see a Java program to check if two strings are anagrams. If two Strings have the same set of characters, then these are anagram Strings. Let’s see a Java program to check two Strings are anagrams. Java Program import java.util.Arrays; /** * Java program to check if the two strings are anagrams or not * By coderolls.com */ p...

In this tutorial, we will see a Java program to check whether two multidimensional arrays are equal or not. To check whether two multidimensional arrays are equal or not, we can use the Arrays.deepEquals() method. Also see, Java Program To Check Whether Two One-dimensional Arrays Are Equal Java Program import java.util.Arrays; /** * Java ...

In this article, we will see the comparison between JDK, JRE and JVM. Introduction While talking about the Java programming language, we usually hear the terminologies like JDK, JRE and JVM. To understand the difference between these terminologies, let’s see a use case. Two types of users use the Java programming language. The first ones ar...

In this tutorial, we will see a Java program to check if two arrays are equal or not. We have x ways to check if the two Arrays are equal or not. Iterating over an array Using the Arrays.equal() method 1. Java Program To Check Two Arrays Are Equal By Iterating over an Array To check if the two arrays are equal or not, we can use the fo...

We have seen how to insert, find and update documents in mongodb collection. In this tutorial, we will see how to delete documents in MongoDB in Java applications. To delete a document in the MongoDB collection, first, we should have a MongoClient. Let’s see how to create one. Or You can read more at How to Connect to a MongoDB Atlas Cluster i...

In this tutorial, we will see how to find duplicate characters and their count in the string using the Java program. We will be iterating over the string and then we will be using the HashMap to store characters and their count as a key and value pair. Java Program To Find Duplicate Characters And Their Count Form The String import java.util....