Overloading Plus
The +  can be used to add numbers or
join strings (concatenate)
5 + 5  Û  10
"a" + "b"  + "c" Û "abc"
'5' + '5' Û  '55'
The operand type determines the operation
Combine a number and string???
5 + '5' Û  '55’
Rule: With an operand of each type,
convert number to string, concatenate