Solution to
Try It Yourself: overloading

  1. The first and the third have the same signature: 
    public void test(int a, String s)
public int  test(int a, String s)
  2. The second and the third have the same signature: 
    public  void mystery(int a, double b, float c)
private void mystery(int q, double r, float s)
  3. The output is: 
    !!! 0three !!!
*** 2 ***
+++ 4.0 +++
!!! 0three !!!
*** 5 ***
+++ 10.0 +++
!!! 0three !!!