interface Function { boolean run(int n); }
class Crazy implements Function { public int run(int n) { if(Haelt.haelt(this, n)) return run(n); return n; } }
class Test1 implements Runnable { public void run() { System.out.println("Hallo"); } } class Test2 implements Runnable { public void run() { while(true) {} } } class Haelt { public static boolean haeltFuer(Function f, int n) { if(f.run(n)) return true; return false; } public static boolean haelt(Function f) { return haeltFuer(f, 0); } public static boolean haeltTricky(Runnable f, int timeout) throws InterruptedException { Thread ft = new Thread(f); ft.start(); while(timeout > 0) { if(ft.getState() == Thread.State.TERMINATED) { return true; } Thread.sleep(1000); timeout--; } ft.stop(); return false; } public static void main(String[] args) { try { System.out.println(haeltTricky(new Test1(), 5)); System.out.println(haeltTricky(new Test2(), 5)); } catch(Exception ex) { } } }
