Programming Articles - Page 2750 of 3366

An immutable copy of a LocalDateTime object where some weeks are added to it can be obtained using the plusWeeks() method in the LocalDateTime class in Java. This method requires a single parameter i.e. the number of weeks to be added and it returns the LocalDateTime object with the added weeks.A program that demonstrates this is given as follows −Example Live Demoimport java.time.*; public class Demo {    public static void main(String[] args) {       LocalDateTime ldt = LocalDateTime.now();       System.out.println("The current LocalDateTime is: " + ldt);       System.out.println("The LocalDateTime with 4 weeks added is: ... Read More

An immutable copy of a LocalTime object where some seconds are subtracted from it can be obtained using the minusSeconds() method in the LocalTime class in Java. This method requires a single parameter i.e. the number of seconds to be subtracted and it returns the LocalTime object with the subtracted seconds.A program that demonstrates this is given as follows −Example Live Demoimport java.time.*; public class Demo {    public static void main(String[] args) {       LocalTime lt = LocalTime.now();       System.out.println("The current LocalTime is: " + lt);       System.out.println("The LocalTime with 5 seconds subtracted is: ... Read More

An immutable copy of a LocalTime object where some hours are added to it can be obtained using the plusHours() method in the LocalTime class in Java. This method requires a single parameter i.e. the number of hours to be added and it returns the LocalTime object with the added hours.A program that demonstrates this is given as follows −Example Live Demoimport java.time.*; public class Demo {    public static void main(String[] args) {       LocalTime lt = LocalTime.now();       System.out.println("The current LocalTime is: " + lt);       System.out.println("The LocalTime with 3 hours added is: ... Read More

An immutable copy of a LocalTime object where some nanoseconds are added to it can be obtained using the plusNanos() method in the LocalTime class in Java. This method requires a single parameter i.e. the number of nanoseconds to be added and it returns the LocalTime object with the added nanoseconds.A program that demonstrates this is given as follows −Example Live Demoimport java.time.*; public class Demo {    public static void main(String[] args) {       LocalTime lt = LocalTime.now();       System.out.println("The current LocalTime is: " + lt);       System.out.println("The LocalTime with 1000 nanoseconds added is: ... Read More

Edge coloring is a method of coloring the edges of a graph, such that no two edges having a common vertex is colored with same color. A line Graph is a special type of graph which help us to assume an edge-coloring problem into a vertex-coloring problem. In other words, using a line graph makes edge coloring easier. In this article, we will discuss how to perform edge coloring of a graph using line graph and greedy coloring approach. What is Line Graph? Line graph is a special graph that is created from another graph. In the line ... Read More

Graph coloring is a technique in which, we assign colors to the vertices of a graph such that no two adjacent vertices have same color. Bipartite graph a special kind of graph which is possible to color by just two colors. In this article, we will discuss how to perform graph coloring on a bipartite graph using BFS algorithm. What is Bipartite Graph? Bipartite graph is special graph where you can divide the vertices into two sets, such that no two vertices of the same set are connected. This is why, it's possible to color a bipartite graph by ... Read More

There is a big distinction between the suffix and prefix versions of ++.In the prefix version (i.e., ++i), the value of i is incremented, and the value of the expression is the new value of i. So basically it first increments then assigns a value to the expression.In the postfix version (i.e., i++), the value of i is incremented, but the value of the expression is the original value of i. So basically it first assigns a value to expression and then increments the variable.Let's look at some code to get a better understanding.Example Code#include using namespace std; int main() ... Read More

Data hiding is one of the important features of Object Oriented Programming which allows preventing the functions of a program to access directly the internal representation of a class type. The access restriction to the class members is specified by the labeled access modifiers: public, private, and protected sections within the class body.The default access for members and classes is private.Example Codeclass Base { public:     // public members go here protected: // protected members go here private:     ... Read More

In C++ program, struct is a keyword used to define a structure, while typedef is a keyword that is used to create an alias for a data type. In this article, we will discuss the difference between struct and typedef struct in C++. Struct in C++ Struct is a keyword used to define a structure in C++. A structure is a user-defined data type that groups related variables of different data types into a single unit. Struct is same as a class, but the members of a struct are public by default. The syntax for defining a struct is ... Read More

static_cast − This is used for the normal/ordinary type conversion. This is also the cast responsible for implicit type coersion and can also be called explicitly. You should use it in cases like converting float to int, char to int, etc.dynamic_cast − This cast is used for handling polymorphism. You only need to use it when you're casting to a derived class. This is exclusively to be used in inheritance when you cast from base class to derived class.Regular Cast − This is the most powerful cast available in C++ as it combines const_cast, static_cast and reinterpret_cast. but it's also ... Read More