Java: Is there support for macros?

Question

I am just curious on how people solve this. I often write the same type of code all the time. For instance:

new Thread() {
   //...
   //...
   //...
   //Change         


        

Answer 1

One technique is to put the code in an anonymous inner class, and pass that to a method that does the rest.

interface SomeInterface {
    void fn();
}

    executeTask(new SomeInterface {
        public void fn() {
            // Change this line.
        }
    });

private void executeTask(final SomeInterface thing) {
     Thread thread = new Thread(new Runnable() { public void run() {
        //...
        //...
        //...
        thing.fn();
        //...
        //...
     }});
     thread.start();
}

Generally it isn't a good idea to extend Thread or other classes if it is unnecessary.