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Multithreading Introduction
Last Updated : 26 May, 2026
title: Thread Introduction
Multithreading108 words7 headingsTables includedExamples included
title: Thread Introduction description: Java mein multithreading ka introduction
Thread kya hai?
Thread ek lightweight sub-process hai — program execution ki smallest unit.
Multithreading kyun?
- Multiple tasks simultaneously karna
- CPU utilization better hoti hai
- Responsive applications banana
- Background tasks chalana
Process vs Thread
| Process | Thread | |
|---|---|---|
| -- | -- | -- |
| Memory | Alag memory space | Shared memory |
| Communication | Inter-process (slow) | Shared memory (fast) |
| Creation | Heavy, slow | Lightweight, fast |
| Example | Chrome.exe | Chrome ka har tab |
Java mein Thread create karna — 2 tarike
1. Thread class extend karna
class MyThread extends Thread {
@Override
public void run() {
for (int i = 1; i <= 5; i++) {
System.out.println("Thread: " + i + " - " + Thread.currentThread().getName());
}
}
}
MyThread t = new MyThread();
t.start(); // run() directly mat call karo!
2. Runnable interface implement karna
java exampleWoHoTech
class MyRunnable implements Runnable {
@Override
public void run() {
System.out.println("Runnable running: " + Thread.currentThread().getName());
}
}
Thread t = new Thread(new MyRunnable());
t.start();
// Lambda se (Java 8+)
Thread t2 = new Thread(() -> System.out.println("Lambda thread"));
t2.start();main Thread
Java program main thread se start hota hai. Sabhi child threads isi se bante hain.
java exampleWoHoTech
System.out.println(Thread.currentThread().getName()); // "main"Exam Focus
Revise definitions, diagrams, examples, and short-answer points for Multithreading Introduction.
Interview Use
Prepare one clear explanation, one practical example, and one common mistake for this Java topic.
Search Terms
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MultithreadingCreating Threadstitle: Creating Threads in JavaMultithreadingDaemon Threadtitle: Daemon Thread in JavaMultithreadingInter-Thread Communicationtitle: Inter-Thread CommunicationMultithreadingMultithreading Practice Programstitle: Multithreading ProgramsMultithreadingThread Classtitle: Thread Class in JavaMultithreadingThread Life Cycletitle: Thread Life Cycle