## 創建新的線程方法二 1. 定義實現類實現Runnable 2. 實現類要重寫run方法(就是寫任務代碼) 3. 創建實現類對象. 4. 創建Thread類對象,并把剛才的實現類對象作為參數傳遞. 5. 啟動這個Thread對象. ~~~ public class MyRunnable implements Runnable { @Override public void run() { for (int i = 0; i < 120; i++) { System.out.println("子線程:" + i); } } } ~~~ ~~~ public static void main(String[] args) { //創建實現類對象 MyRunnable myRunnable = new MyRunnable(); //將實現任務類對象當做參數傳遞給Thread構造 Thread thread = new Thread(myRunnable); //設置為守護線程 thread.setDaemon(true); //開啟線程,不是開啟任務 thread.start(); for (int i = 0; i < 20; i++) { System.out.println("main:" + i); } } ~~~