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Articles on Trending Technologies
Technical articles with clear explanations and examples
Can we define a method name same as class name in Java?
A method is a collection of statements that are grouped together to perform an operation. In Java, you can define a method having the same name as the class but it is not recommended as per the coding standard. Can We define a Method Having Same as Class? Yes, It is allowed to define a method with the same name as that of a class. There is no compile-time or runtime error will occur. But this is not recommended as per coding standards in Java. Normally the constructor name and class name always the same in Java. Example of a ...
Read MoreJava program to reverse a string using recursion
In this article, we will learn to reverse a string using recursion in Java. Recursion is the process of repeating items in a self-similar way. In programming languages, if a program allows you to call a function inside the same function, then it is known as a recursive call of the function. You can reverse a string using the recursive function as shown in the following program. Steps to reverse a string using recursion Following are the steps to reverse a string using recursion - Create a class called StringReverse with a method reverseString that takes ...
Read MoreJava Program to Implement Multiple Inheritance
In this article, we will understand how to implement multiple inheritance. Unlike other programming languages, such as C++, Java does not support multiple inheritance through classes. This means that a class cannot inherit from more than one class. But why? Let's understand first what multiple inheritance is and why it is so. Multiple Inheritance Multiple Inheritance is one of the features of object-oriented programming, where a class (child class) can inherit properties of more than one class (parent class) using the extends keyword. But Java does not support this to avoid complexity and ambiguity. It can ...
Read MoreJava Program to Calculate Simple Interest
In this article, we will understand how to write a Java program to calculate simple interest. But, before doing it, let's understand how we calculate simple interest mathematically. The simple interest is a way to determine the amount of interest gained on a principal amount at the specified interest rate for a given time. Unlike compound interest, its principal amount does not change over time. To calculate Simple Interest, we use the following formula− Simple Interest (S.I) = Principal * Time * Rate / 100 where, P is the principal amount T is the time R is the rate ...
Read MoreJava Program to Display All Prime Numbers from 1 to N
In this article, we will understand how to display all the prime numbers from 1 to N in Java. All possible positive numbers from 1 to infinity are called natural numbers. A number is a prime number if its only factors are 1 and itself and cannot be divided by any other number. 11 is a prime number. Its factors are 1 and 11 itself. Some examples of prime numbers are 2, 3, 5, 7, 11, 13, and so on. 2 is the only even prime number. All other prime numbers are odd numbers. Below is a demonstration of the ...
Read MoreHow to find length of a string without string.h and loop in C?
C provides libraries for string operations such as the string.h header file that contains a strlen() function, which counts the length of a string. Otherwise, a loop can be used to count the string length. There are also different ways to find the length of a string apart from the above two methods. So, basically, in this article, we will learn how to find the length of a string without string.h and loop in C. Find Length of a String Without string.h and Loop in C There are the following ways to find the string's length without using the string.h ...
Read MoreInsertion and Deletion in STL Set C++
The STL set is a container that stores unique elements in a sorted order. Insertions and deletions are common operations performed in containers like std::set and std::vector. In this article, we will learn how to insert and delete elements in a C++ STL set. Insertion in STL Set To insert a new element into a std::set you can use the insert method or the emplace method. Let's understand how to use these methods with examples. Using insert Method Using emplace Method 1. Using insert Method The insert ...
Read MoreHow to convert std::string to lower case in C++?
The STL library in C++ provides various inbuilt functions and methods to manipulate strings, such as converting them to lower case or upper case. In this article, we will learn all the approaches to convert a std::string to lower case in C++. First of all, let's understand the problem statement. In this problem, you are given a string as input and you need to convert it to lower case. The string may contain any type of characters such as letters, digits, and special characters. For example: // Input String std::string str = "Hello World! 123 @ TutorialsPoint"; // ...
Read MoreC++ Program to Find the peak element of an array using Binary Search approach
The peak element in an array is an element that is greater than its neighbor elements i.e., its left and right element. If the peak element is the starting element, then it should be greater than the next element (second element). If the peak element is the last element, then it should be greater than its previous value i.e., the second last element. In this article, we have an array of integers. Our task is to use the binary search algorithm to find the peak element present in the given array. Example Here are two examples to understand the ...
Read MoreHow to convert std::string to LPCSTR in C++?
std::string The std::string is a class of C++ Standard Library (STL) that represents a string (sequence of characters). It is used to handle strings with better memory management, i.e., it provides dynamic memory management for strings and supports a rich set of in-built functions for string manipulation. Syntax Following is the syntax of string: string str = "tutorialspoint"; std::LPCSTR LPCSTR stands for Long Pointer to Constant String. It is a constant, null-terminated string of ANSI (narrow) characters (8-bit characters). In contrast to LPCWSTR, which stores wide characters (Unicode/UTF-16), LPCSTR is used in Windows API functions to store regular char-based ...
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