Thread class

start methodでthread start
run methodが処理。
いつ動くかはjvmに任せられている。

class SampleThread extends Thread {
    int i;
    SampleThread(int i) {
        this.i = i;
    }
    @Override
    public void run() {
        super.run(); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/OverriddenMethodBody
        System.out.println("run:" + this.i);
    }

    @Override
    public synchronized void start() {
        super.start(); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/OverriddenMethodBody
        System.out.println("start:" + this.i);
    }
}
public class Outer {
    public static void main(String[] args) {
        for (int i=0 ;i<9 ;i++) {
            Thread t = new SampleThread(i);
            t.start();
           // t.run();
        }
    }
}

start:0
run:0
run:1
start:1
start:2
start:3
start:4
start:5
run:2
start:6
run:6
run:5
run:3
start:7
run:4
run:7
start:8
run:8