simple multithreaded hello world

#include <unistd.h> #include <pthread.h> // A C function that is executed as a thread // when its name is specified in pthread_create() void *myThreadFun(void *vargp) { for (int i = 0; i < 10; i++) { printf("Hello World! %d Printing from spawned thread\n", i); sleep(1); } return NULL; } int main() { // Create a new thread pthread_t thread_id; pthread_create(&thread_id, NULL, myThreadFun, NULL); // Main thread for (int i = 0; i < 10; i++) { printf("Hello World! %d from the main thread\n", i); sleep(2); } pthread_join(thread_id, NULL); exit(0); }

package main import ( "fmt" "time" ) func main() { // Create a new thread go func() { for i := 1; i < 10; i++ { fmt.Printf("Hello World! %d. Printing from spawned thread\n", i); time.Sleep(1 * time.Millisecond) } }() // Main thread for i := 1; i < 10; i++ { time.Sleep(2 * time.Millisecond) fmt.Printf("Hello World! %d from the main thread\n", i) } }

#include <iostream>
#include <thread>
#include <chrono>

using namespace std;

int main() {
    // Create a new thread
    auto f = [](int x) {
        for (int i = 0; i < x; i++) {
            cout << "Hello World! " << i << " Printing from spawned thread" << endl;
            std::this_thread::sleep_for(std::chrono::milliseconds(500));
        }
    };
    thread th1(f, 10);

    // Main thread
     for (int i = 0; i < 10; i++) {
        cout << "Hello World! " << i << " from the main thread" << endl;
        std::this_thread::sleep_for(std::chrono::milliseconds(1000));
    }
    // Wait for thread th1 to finish
    th1.join();
    return 0;
}

Posted by: Guest on June-21-2021

use std::thread; use std::time::Duration; fn main() { // Create a new thread let handle = thread::spawn(|| { for i in 1..10 { println!("Hello World! {}. Printing from spawned thread", i); thread:: sleep(Duration::from_millis(1)); } }); // Main thread for i in 1..10 { println!("Hello World! {} from the main thread", i); thread::sleep(Duration::from_millis(2)); } // Hold the main thread until the spawned thread has completed handle.join().unwrap(); }

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