4. Integer and Decimal Division
Division of two integers drops the decimal:
5 / 2 = 2 (not 2.5)
4 / 2 = 2
Division involving a double type, will result
in a double result (with decimal)
5 / 2.0 = 2.5
4 / 2.0 = 2
One or both numbers must be a double
Same rules apply to addition, subtraction
and multiplication.
5. Data Types and Order
Sample operations and resulting data
types:
6.0 + 5 / 2
Result of first operation: int
Result of second operation: double
• 5 + 5 / 2.0
Result of first operation: double
Result of second operation: double
6. Type casting
Type casting changes one type to
another.
For example if you want a double type
result of integer division, you can do this:
double result = (double) 5 / 2
result now equals 2.5
7. Type casting
Reverse example (double to int)
Drops the decimal part
double total = 100.5;
int value = (int) total;
value now equals 100.
