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In this article, we will learn to map a String list to lowercase and sort in Java. We need to manipulate the elements of a list, such as converting all strings to lowercase and sorting them. This is particularly useful when dealing with user input, file processing, or data normalization. Problem Statement Given a list of strings, we want to convert all strings to lowercase and sort the list in reverse alphabetical order.For Example: Input ["Apple", "banana", "Cherry", "date"] Output ["date", "cherry", "banana", "apple"] Using Streams API The Streams API provides a useful and functional approach to processing ... Read More
In this article, we will learn to display the date and time in uppercase using Java. Working with date and time in Java is a common requirement in various applications, logging, scheduling, or data processing. Different Approaches The following are the two different approaches to display the date and time in uppercase using Java − Using Formatter and Calendar Using DateTimeFormatter Using Formatter and Calendar The Formatter class in Java allows us to format date and time using the %Tc specifier. We can then convert the output to uppercase using ... Read More
The task is to write C++ programs that calculates the sum of the digits of a given number. For example, if the number is 453, the sum of its digits would be 4 + 5 + 3 = 12. To solve this, we will extract each digit from the number and add them together. We will use basic programming concepts such as loops and arithmetic operations to achieve this. In this article, we will show you how to write a C++ program that takes a number as input and sums the digits of that number. Approaches for ... Read More
In this article, we will write a C++ program that implements a Min Heap. A Min Heap is a binary tree where the value of each node is less than or equal to the values of its children. We will explain how to create a Min Heap using arrays and implement operations like insertion and deletion. The article will cover the following topics: What is a Heap? Types of Heap Representing a Heap What is a Min Heap? What ... Read More
The XML is the markup language used to transfer the data. The XML syntax is the same as the HTML, whereas the tags are predefined in HTML and not in XML. This offers us to store the data between the opening and closing tags. In Python, dictionaries store data as key-value pairs. We can serialize a dictionary to XML format using two popular libraries: dict2xml (widely used) dicttoxml ... Read More
In Java there are various data types present, the String type often leads to confusion regarding whether it is a primitive data type or an object(non-primitive data type ). Primitive Data Types in Java Primitive data types are the most basic data types the Java language provides. Primitive data types are not objects and do not have methods or properties. Eg: int (32-bit), float(32-bit), double(64-bit ), etc. What is String in Java? A string is not a primitive data type. Java.lang package provides the String class therefore, it is an object type. The String class provides methods to manipulate and operate ... Read More
Understanding the Operator in Python The is one of the operators available in Python. The present version that we are using is Python 3. The previous version was Python 2. Some of the operators in Python 2 don't support in Python 3. is used in Python 2, which is not supported in Python. The operator != is used in Python 3. The functionality of the or != is to represent not equal to. The output of these operators is in the format of Boolean values True or False. Syntax The following is the syntax for using ... Read More
Python Program to Count Total Bits in a Number To calculate the total bits in a number, convert it to binary using the bin() function. A bit represents data as 0 or 1, and 8 bits make a Byte. Bits are essential for data transmission, storage, and arithmetic operations, and bitwise operations are also possible. The output of bin() starts with 0b, followed by the binary digits. To find the total bit count, remove the leading 0b after conversion. Syntax Following is the Syntax for the bin() function. Where, number is the number to be converted into binary format variable_name ... Read More
Python object is belongs to the object oriented programming language. We previously have idea and knowledge regarding the python object. provides several built-in functions that help you inspect various aspects of objects. Some of these methods, including help(), type(), dir(), id(), hasattr(), getattr(), and callable(). Using the help() function If we want to inspect the python object we have a built function of python named help(). That provides documentation about an object, including its methods and attributes. Example In the following code, we imported the power function from the math module. Next we applied the inbuilt function help() on power ... Read More
We have to work with large size files in Python. If we use the large files, they occupy more space, and it isn't easy to handle the large files too. In such cases, we have a module in Python to work with the large files. The module we can use to handle large files is zipfile. By using this module, we can compress a large file into smaller files in Python. The following is the process that we have to follow for compressing the large files. ... Read More