Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
In this section, we will see how to remove some characters from a string in C++. In C++ we can do this task very easily using erase() and remove() function. The remove function takes the starting and ending address of the string, and a character that will be removed. // Input String = "Hello TutorialsPoint" Char = 'o' // Output String = "Hell TutrialsPint" Algorithm to Remove Certain Characters from a String Here is the algorithm to remove certain characters from a string in C++: Step 1: Take a string and a character to be removed ... Read More
In this article, we will learn an uncommon representation of array elements in both C and C++. Example of Uncommon Representation of Array Elements Consider following code in C/C++, that is trying to print an element from an array. C C++ #include int main() { int arr[2] = {0,1}; printf("First Element = %d",0[arr]); } Output The output of above program will be: First Element = 0 #include using namespace std; int main() { int arr[2] = {0,1}; cout
In C/C++, both ternary operator and if-else statements are conditional statements: A condition statement expresses the relationship between two ideas or events. Where one is dependent on the other. If the condition is true, the if statement will return; otherwise, the else statement will return. Ternary Operator We know that the ternary operator is the conditional operator. Using this operator, we can check some conditions and do some tasks according to those conditions. Without using the ternary operator, we can also use the if-else conditions to do the same. Following is The Syntax of the Ternary Operator: condition ? expression_if_true ... Read More
In this article, we Implement the C program to find the sum of two numbers without using any Operator. Find Sum of Two Numbers Without Using Any Operator in C This problem is tricky. To solve this problem we are using the minimum width features of the printf() statement. We can use '*' which indicates the minimum width of output. For example, in this statement "printf("%*d", width, num);", the specified 'width' is substituted as *, and 'num' is printed within the minimum width specified. If the number of digits in 'num' is less than the provided 'width', the output will ... Read More
In the C programming language, the printf() function is used to print ("character, string, float, integer, octal, and hexadecimal values") to the output screen. To demonstrate the value of an integer variable, we use the printf() function with the %d format specifier. Let's see a C statement and guess the result: printf("%d %d %d", i, ++i, i++); Here, in the above C statement, both 'i' and 'i++' are in the argument list; this statement causes undefined behaviour. The sequence in which the arguments are evaluated is not specified; orders may alter depending on the compiler. At different times, a ... Read More
The main() function in C and C++ is anentry point of a program from where the execution begins. And there are two common ways available to define the main function; int main() and void main(). In this following article we will learn the differences between these two in detail. The main() function is the same like other functions, which takes arguments and returns some value. A point to keep in mind is that the execution of a program always begins from the main() function. When a program runs, the operating system calls the main() and the value returned from it ... Read More
Any method that is declared as final in the superclass cannot be overridden by a subclass. If we try to override the final method of the super class, we will get a compile-time error. Rules for Implementing Method Overriding The method declaration should be the same as that of the method that is to be overridden. The class (subclass) should extend another class (superclass), prior to even try overriding. The Sub Class can never override final methods of the Super Class. Final method A method is declared final when ... Read More
Both isalpha() and isdigit() are the part of C/C++ library function which can be used to check whether a given character is an alphabetical letter or a digit, respectively. These fuctions accept the given character/digit as input and determine the presence of letter or digit in correct/incorrect form. What is isalpha() in C/C++? The isalpha() function is used to check that a character is an alphabet or not. This function is declared in ctype.h header file. It returns an integer value, if the argument is an alphabet otherwise, it returns zero. Syntax Following is the basic syntax of isalpha() in ... Read More
In this article, we will learn to create an unmodifiable Map in Java 9. First, we will learn about Map and Unmodifiable Map and after that we will be knowing the different ways through which we can create an unmodifiable map (Map.of method and unmodifiableMap() Method). Map In Java, a Map is an interface in the Collections framework used to store data in the form of key-value pairs. Each key in the map is unique and maps to some value. Some of the implementations of the Map interface are: HashMap ... Read More
In this article, we will learn about the differences between the orTimeout() and the completeOnTimeout() methods in Java. Both the orTimeout() and completeOnTimeout() methods are defined in the CompletableFuture class, and these two methods were introduced in Java 9. CompletableFuture class The CompletableFuture class, introduced in Java 8, represents a Future that can have its value and status set explicitly. It also supports dependent functions and actions that are triggered upon the completion of the future. In Java 9, the CompletableFuture API received further enhancements. The following are some common methods of the CompletableFuture class: ... Read More