Java Reference
In-Depth Information
}
public static void
swap2(Circle x, Circle y) {
double
temp = x.radius;
x.radius = y.radius;
y.radius = temp;
}
}
class
Circle {
double
radius;
Circle(
double
newRadius) {
radius = newRadius;
}
}
8.25
Show the printout of the following code:
public class
Test {
public static void
main(String[] args) {
int
[] a = {
1
,
2
};
swap(a);
System.out.println(
"a[0] = "
+ a[
0
]
+
" a[1] = "
+ a[
1
]);
public class
Test {
public static void
main(String[] args) {
int
[] a = {
1
,
2
};
swap(a[
0
], a[
1
]);
System.out.println(
"a[0] = "
+ a[
0
]
+
" a[1] = "
+ a[
1
]);
}
}
public static void
swap(
int
[] a) {
int
temp = a[
0
];
a[
0
] = a[
1
];
a[
1
] = temp;
public static void
swap(
int
n1,
int
n2) {
int
temp = n1;
n1 = n2;
n2 = temp;
}
}
}
}
(a)
(b)
public class
Test {
public static void
main(String[] args) {
T t =
new
T();
swap(t);
System.out.println(
"e1 = "
+ t.e1
+
" e2 = "
+ t.e2);
public class
Test {
public static void
main(String[] args) {
T t1 =
new
T();
T t2 =
new
T();
System.out.println(
"t1's i = "
+
t1.i +
" and j = "
+ t1.j);
System.out.println(
"t2's i = "
+
t2.i +
" and j = "
+ t2.j);
}
public static void
swap(T t) {
int temp = t.e1;
t.e1 = t.e2;
t.e2 = temp;
}
}
class
T {
static int
i =
0
;
int
j =
0
;
}
}
class
T {
int
e1 =
1
;
int
e2 =
2
;
T() {
i++;
j =
1
;
}
}
}
(c)
(d)
