java - Print List of string Multithreaded -

i have list should print values on multithread based on thread count.

public class launcher {  public static void main(string[] args) {     list<string> tests = arrays.aslist("a", "b", "c", "d");     final int thread_count = 2;     (int = 0; < thread_count; i++)         new demo(tests.get(i)); }} public class demo implements runnable { thread t; string tests;  demo(string tests) {     t = new thread(this);     this.tests = tests;     t.start(); }  @override public void run() {     system.out.println("started "+tests);     try {         thread.sleep(5000);     } catch (interruptedexception e) {         // todo auto-generated catch block         e.printstacktrace();     }      system.out.println("stop");  }} 

it prints

started a

started b

stop

stop

but want print

started a

started b

stop

stop

started c

started d

stop

stop

you cannot start cand dbecause set final int thread_count = 2; , loop stops after reaching i < thread_count. if want startet in 2 step loop, enhance loop like:

for(int s = 0; s < 3; s+2){    (int = 0; < thread_count; i++)         new demo(tests.get(i+s));} }