Exercise 2

Programming Exercise: Hallo World – Advanced Version

Behavior:

1^st case: Execution without any command line argument:

Execution: java Hallo
Output: Who is there?

2^nd case: Execution with one command line argument:

Execution: java Hallo Tom
Output: Hallo Tom!

3^rd case: Execution with two command line arguments:

Execution: java Hallo Tom Tim
Output: Hallo Tom and Tim!

4^th case: execution with tree or more (arbitrary many) command line arguments:

Execution: java Hallo Tracy Tom Tim
Output: Hallo Tracy, Tom and Tim!

Exercise 3

Programming exercise: Matrix Product of two matrices (4x5 and 5x4 at least)

· Matrices can be initialized from the source code.

· Output should be printed out in a “nice” matrix format on the screen.