SE450: Functions [2015/09/15]

What is a function?

file:Main.java [source] [doc-public] [doc-private]

package basics.functions;
public class Main {
  private Main() {}
  static public void main (final String[] args) { 
    //stdlib.Trace.graphvizShowSteps (true); stdlib.Trace.run ();
    Fun.f();
    Fun.g(2);
  }
}
class Fun {
  private Fun() {}
  static void f() { System.out.println("Fun.f()"); }
  static void g(final int x) {
    System.out.println("Fun.g(" + x + ")");
    if (x>0) {
      final int y = x-1;
      Fun.g(y);
    }
  }
}

Here is a visualization of the execution at four different point (time moving from left to right).