Java Reference
In-Depth Information
Double.MIN_VALUE + 1
Double.MAX_VALUE Double.MAX_VALUE - 1
Double.MAX_VALUE + 1
SR3.
Evaluate the following expressions to become familiar with casting
between
int
and
double
and the precedence of the casting operators.
5+2.0
7/(
double
)4
2*(7%4)
5.0 + 2
(
double
)7/4
2*(
double
)(7%4)
(7 / 4) * 5
(
double
)(7/4)
2*((
double
)7%4)
(7 / 4.0) * 5
2 * (7 % (
double
)4)
(
int
)5 (
int
)(
double
)4
(
int
) 5.3 (
int
)(
double
) 4.3
(
int
) 5.9 (
double
)(
int
) 4.3
(
int
) -5.3 (
int
)(
int
) 4.3
(
int
) -5.9 (
double
)(
double
)4
SR4.
Type the following expressions into your IDE and see what their values are
to become familiar type
boolean
.
true
true
&&
false
true
||
false
false
true
&&
true
true
||
true
!
true
false
&&
false
false
||
false
!
false
!!
true
true
&&
false
&&
true
true
||
false
||
true
true
&& !
false
&&
true
true
||
true
&&
false
true
||
false
&&
true
true
&&
true
||
false
true
|| (
false
&&
true
)
true
&& (
true
||
false
)
(
true
||
false
)&&
true
(
true
&&
true
)||
false
true
||
true
&&
false
SR5.
Type the following expressions into your IDE and see what their values are
to become familiar with
String
s.
"Truth " + "is" + "best"
("Truth " + "is") + "best"
"Truth " + ("is" + "best")
56 + "" + 56
SR6.
Type the following expressions into your IDE and see what their values are
to become familiar with precedences of operators.
"" + 4 / 2
("" + 4) / 2
"" + (4 / 2)
""+4+2
""+(4+2)
(""+4)+2
4+2+""
4+(2+"")
4+2<6
4+2<4+3
4<3==3<4
4<3==
true
||
false
4<=4&&2<4
4<3!=
true
&&
false
Search WWH ::
Custom Search