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OnJava8-Examples/control/LabeledFor.java at master · CSapprenticeWT/OnJava8-Examples · GitHub
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LabeledFor.java
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// control/LabeledFor.java
// (c)2021 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
// For loops with "labeled break"/"labeled continue."
public
class
LabeledFor
{
public
static
void
main
(
String
[]
args
) {
int
i
=
0
;
outer
:
// Can't have statements here
for
(;
true
;) {
// infinite loop
inner
:
// Can't have statements here
for
(;
i
<
10
;
i
++) {
System
.
out
.
println
(
"i = "
+
i
);
if
(
i
==
2
) {
System
.
out
.
println
(
"continue"
);
continue
;
}
if
(
i
==
3
) {
System
.
out
.
println
(
"break"
);
i
++;
// Otherwise i never
// gets incremented.
break
;
}
if
(
i
==
7
) {
System
.
out
.
println
(
"continue outer"
);
i
++;
// Otherwise i never
// gets incremented.
continue
outer
;
}
if
(
i
==
8
) {
System
.
out
.
println
(
"break outer"
);
break
outer
;
}
for
(
int
k
=
0
;
k
<
5
;
k
++) {
if
(
k
==
3
) {
System
.
out
.
println
(
"continue inner"
);
continue
inner
;
}
}
}
}
// Can't break or continue to labels here
}
}
/* Output:
i = 0
continue inner
i = 1
continue inner
i = 2
continue
i = 3
break
i = 4
continue inner
i = 5
continue inner
i = 6
continue inner
i = 7
continue outer
i = 8
break outer
*/
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