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CountDownLatch and CyclicBarrier both used in multithreading environment and they both are part of.As per Java Doc −CountDownLatch − A synchronization aid that allows one or more threads to wait until a set of operations being performed in other threads completes.CyclicBarrier − A synchronization aid that allows a set of threads to all wait for each other to reach a common barrier point.Sr. No.KeyCyclicBarrierCountDownLatch1BasicA synchronization aid that allows a set of threads to all wait for each other to reach a common barrier point.A synchronization aid that allows one or more threads to wait until a set of operations being ... Read More
In this tutorial, we will be discussing a program to find maximum of sum and product of digits until number is reduced to a single digitFor this we will be provided with a random number. Our task is to find and print out the maximum of sum and product of the digits of the given number until it coverts to a single digitExample Live Demo#include using namespace std; //converting number to single digit by adding long repeatedSum(long n) { if (n == 0) return 0; return (n % 9 == 0) ? 9 : (n % ... Read More
In this tutorial, we will be discussing a program to find the maximum of smallest possible area that can get with exactly k cut of given rectangular.For this we will be provided with the sides of the rectangle and the number of cuts that can be made. Our task is to calculate the smallest area that can be achieved by making the given number of cuts.Example Live Demo#include using namespace std; void max_area(int n, int m, int k) { if (k > (n + m - 2)) cout
Docker Swarm and Kubernetes both can be used for similar purpose. They both are container orchestration tool.Docker Swarm is a tool used for clustering and scheduling Docker containers. We can easily establish and manage a cluster of Docker nodes under a single virtual system.Kubernetes is also container orchestration tool which is developed by google. It can be used for automatic deployment ,scaling, load balancing and logging and monitoring.Sr. No.KeyDocker SwarmKubernetes1BasicKubernetes is also container orchestration tool which is developed by google. It can be used for automatic deployment ,scaling, load balancing and logging and monitoring.Docker Swarm is a tool used for ... Read More
Kafka and JMS both are messaging system. Java message service is an api which are provided by Java. It is used for implementing messaging system in your application. JMS supports queue and publisher /subscriber(topic) messaging system . With queues, when first consumer consumes a message, message gets deleted from the queue and others cannot take it anymore. With topics, multiple consumers receive each message but it is much harder to scale.Kafka is a generalization of these two concepts - it allows scaling between members of the same consumer group, but it also allows broadcasting the same message between many different ... Read More
In this tutorial, we will be discussing a program to find greater value between a^n and b^n.For this we will be provided with three numbers. Our task is to calculate a^n and b^n and return back the greater of those values.Example Live Demo#include using namespace std; //finding the greater value void findGreater(int a, int b, int n){ if (!(n & 1)) { a = abs(a); b = abs(b); } if (a == b) cout b) cout
In this tutorial, we will be discussing a program to find GCD or HCF of two numbers using Middle School Procedure.For this we will be provided with two numbers. Our task is to find the GCD (greatest common divisor) or HCF (highest common factor) for the given values.Example Live Demo#include #define MAXFACTORS 1024 using namespace std; //structure to store factorization typedef struct{ int size; int factor[MAXFACTORS + 1]; int exponent[MAXFACTORS + 1]; } FACTORIZATION; void FindFactorization(int x, FACTORIZATION* factorization){ int i, j = 1; int n = x, c = 0; int k = ... Read More
In this tutorial, we will be discussing a program to find GCD of floating point numbers.For this we will be provided with two integers. Our task is to find the GCD (Greatest common divisor) of those two provided integers.Example Live Demo#include using namespace std; //returning GCD of given numbers double gcd(double a, double b){ if (a < b) return gcd(b, a); if (fabs(b) < 0.001) return a; else return (gcd(b, a - floor(a / b) * b)); } int main(){ double a = 1.20, b = 22.5; cout
In this tutorial, we will be discussing a program to find N lccanobif numbers.For this we will be provided with an integer. Our task is to find the lccanobif number at that position. They are similar to the fibonacci number except the fact that we add the previous two numbers after reversing their digits.Example Live Demo#include using namespace std; //reversing the digits of a number int reverse_digits(int num){ int rev_num = 0; while (num > 0) { rev_num = rev_num * 10 + num % 10; num = num / 10; ... Read More
PermGen is the memory area for storing class data like static variable, byte code and etc. By default 64 Mb is allocated for PermGen. It can be tuned by using -XXMaxPermSize.In Java 8, PermGen method area replaced with MetaSpace. They have moved permGem to the separate memory in the native OS and that is called MetaSpace. It can by default auto increases its size. In MetaSpace, classes can load and unload during the lifespan of the JVM.Sr. No.KeyPermGenMetaSpace1BasicPermGen is the memory area for storing class data like static variable, byte code and etcIn Java 8, PermGen method area replaced with ... Read More