(Trick Question:) What would be the discount if code were 'a' ?
Answer:
0.3 — Notice that the code is a lower case 'a', not upper case.
Using break
There is one label per case statement, and
there must be an exact match with the expression in the switch
for the case to be chosen.
The break at the end of each case is not always needed.
If it is omitted,
then after the statements in the selected case have executed,
execution will continue with the following case.
This is not usually what you want.
Examine
the following program:
class Switcher
{
public static void main ( String[] args )
{
char color = 'Y' ;
String message = "Color is";
switch ( color )
{
case 'R':
message = message + " red" ;
case 'O':
message = message + " orange" ;
case 'Y':
message = message + " yellow" ;
case 'G':
message = message + " green" ;
case 'B':
message = message + " blue" ;
case 'V':
message = message + " violet" ;
default:
message = message + " unknown" ;
}
System.out.println ( message ) ;
}
}
The program fragment will print:
Color is yellow green blue violet unknown
This is probably not what the program was intended to do.
QUESTION 9:
Mentally fix the program fragment so that it prints just one color name.
