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As per the problem statement, we need to find the first and last word of the given String. Let’s explore the article to see how it can be done by using Java programming language. To Show You Some Instances Instance-1 Suppose there is String “Java is a well-known high-level, class-based object-oriented programming language that Sun Microsystems created and first distributed in 1995. Over 3 billion devices run Java, which is currently owned by Oracle” After printing the first and last word of this String i.e “Java” and “Oracle”. Instance-2 Suppose there is String “For the creation of their desktop, web, ... Read More
In Java, Array is an object. It is a non-primitive data type which stores values of similar data type. As per the problem statement we have to separate odd and even elements into two separate arrays and print the result. A number is said to be an even number if it is divisible by 2, else the number is an odd number. Note − The array must be an integer array. In this article, you will see how to separate even and odd numbers of an array into two different arrays by using Java programming language. Let’s start. To Show ... Read More
As per the problem statement we need to find all the Emails present in the file. Let’s explore the article to see how it can be done by using Java programming language. To Show You Some Instances Instance-1 Suppose there is given paragraph and it contains many different email ids and we want to extract all the mail id present in that paragraph. For e.g. − “I am a boy with email boy54@gmail.com. My friend’s email is friend78@gmail.com.”.” From the above paragraph, we need to take out the given two mail id in the paragraph i.e., boy54@gmail.com and friend78@gmail.com. Instance-2 ... Read More
There is a property of space which is caused by the motion of the electric charge, is known as electromagnetic field. There are two component of an electromagnetic field viz. −Electric fieldMagnetic fieldA stationary electric charge produces only an electric field in the surrounding space. If the electric charge is moving, then it also produces a magnetic field. The electric field and magnetic field occupy different planes relative to the cause of the electromagnetic field, i.e., moving charge.Therefore, one of the major difference between electric field and the magnetic field is that the electric field produces around a static electric ... Read More
Introduction Bulk reading is a common operation when working with Cassandra, a popular NoSQL database known for its scalability and high performance. It allows you to efficiently retrieve large amounts of data from a Cassandra cluster by making use of the database's distributed architecture. In this article, we'll explore the various ways you can perform bulk reading in Cassandra and the considerations you should keep in mind when doing so. What is Cassandra? Before diving into the specifics of bulk reading, let's first take a step back and talk about Cassandra itself. Cassandra is a distributed database management system designed ... Read More
Introduction A data model is a blueprint that represents the organization of data and the relationships between different data entities. It is an essential component of any software system as it defines how data is stored, accessed, and modified. In this article, we will explore the building blocks of a data model and how they work together to form a cohesive whole. Data Entities The first building block of a data model is data entities, which represent the objects or concepts that are relevant to the system. For example, in an e-commerce system, data entities might include products, customers, orders, ... Read More
A data warehouse is a central repository of integrated data that is used for reporting and analysis. It stores large amounts of historical and current data and enables fast query performance for analytical purposes. A data warehouse can be used to support business decision-making, improve operational efficiency, and gain a competitive edge. In this article, we will discuss the process of building a data warehouse from scratch. Understanding the Requirements for a Data Warehouse Before starting the design and construction of a data warehouse, it is important to understand the business requirements and the type of data that will be ... Read More
What is Buffering of Blocks? In computer science, buffering refers to the temporary storage of data in a buffer, or a small, fixed-sized area in memory, while it is being moved from one place to another. When data is transferred from one location to another, it is often necessary to store it temporarily in a buffer to ensure that the transfer is smooth and efficient. There are two main types of buffering: input buffering and output buffering. Input buffering refers to the temporary storage of data that is being received from an external source, such as a file on a ... Read More
Introduction If you are working with Cassandra, you may have come across the need to convert blobs to other data types or vice versa. Cassandra, being a distributed NoSQL database, stores data in the form of blobs (binary large objects) to increase flexibility and scalability. However, this can cause issues when you need to query or manipulate the data stored as blobs. That's where the blob conversion function comes in handy. In Cassandra, you can use the "blobAs*" function to convert blobs to various data types, such as integers, floats, timestamps, and more. This function allows you to easily access ... Read More
Bitmap indexing in DBMS is a type of indexing technique that is used to improve the performance of database systems. It works by creating a bitmap for each distinct value in a database column, with each bit in the bitmap representing a row in the database table. The bitmap index can then be used to quickly identify which rows in the table match a given search criteria, making it an efficient way to filter and retrieve data from large tables. In this article, we will delve into the concept of bitmap indexing and how it works, the advantages and disadvantages ... Read More