method-invocation

I have two pieces of code. One works, another doesn't, but both seem to do identical things. This works: short s=7; but the below code doesn't. Instead, it gives error: can't assign int to short I know an integer number literal by default is int , but if it can be assigned directly above, then why not when passing to a method? class Demo1{ public static void main(String[] args){ new Demo1().go(7); } void go(short s){System.out.println("short");} } The rules are different for assignment and for method overload resolution : For assignment the JLS says : In addition, if the expression is a

I am attempting to write a method the executes a static method from another class by passing an array of strings as arguments to the method. Here's what I have: public static void executeStaticCommand(final String[] command, Class<?> provider) { Method[] validMethods = provider.getMethods(); String javaCommand = TextFormat.toCamelCase(command[0]); for (Method method : validMethods) { if (method.getName().equals(javaCommand)) { try { method.invoke(null, new Object[] { new Object[] { command } }); } catch (IllegalAccessException e) { e.printStackTrace(); } catch (InvocationTargetException e) {

I want to write my own function in JavaScript which takes a callback method as a parameter and executes it after the completion, I don't know how to invoke a method in my method which is passed as an argument. Like Reflection. example code function myfunction(param1, callbackfunction) { //do processing here //how to invoke callbackfunction at this point? } //this is the function call to myfunction myfunction("hello", function(){ //call back method implementation here }); You can just call it as a normal function: function myfunction(param1, callbackfunction) { //do processing here

I know Thread.sleep() can make a java thread suspend for a while, like certain milliseconds and certain nanoseconds. But the problem is the invocation of this function also causes overhead. For example, if I want a thread to suspend for 100 nanoseconds, and I call Thread.sleep(0, 100) . The whole cost for this process is invocation_cost + 100 nanosceonds , which may be much larger the what I want. How could I avoid this problem, and achieve my purpose? The reason I need this is that I want to do simulation offline. I profiled the execution time of a task; Now I want to simulate this execution