SE450: Passing Parameters [2015/09/15]

SE450: Basics: Passing Parameters [31/63]

What does the following print?

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

package basics.swap;
public class Main {
  private Main() {}
  static public void main (String[] args) {
    //stdlib.Trace.graphvizShowSteps (true); stdlib.Trace.showBoxedPrimitivesAsPrimitive(false); stdlib.Trace.run ();
    Integer x = 42;
    Integer y = 27;
    Main.swap(x,y);
    System.out.println(x);
    System.out.println(y);
  }
  static private void swap (Integer a, Integer b) {
    Integer t = a;
    a = b;
    b = t;
  }
}