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2010-06-01T05:18:56Z

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в 17:44, 31 мая 2010

2010-05-31T17:44:27Z

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== Calculating Primes: using continue statement and label ==

continue may be followed by a label to identify which enclosing loop to continue to.



<source lang="java">
public class MainClass {
public static void main(String[] args) {
int nValues = 50;
OuterLoop: for (int i = 2; i <= nValues; i++) {
for (int j = 2; j < i; j++) {
if (i % j == 0) {
continue OuterLoop;
}
}
System.out.println(i);
}
}
}</source>



<pre class=codeResult>2
3
5
7
11
13
17
19
23
29
31
37
41
43
47</pre>

== The continue Statement ==

The continue statement stops the execution of the current iteration and causes control to begin with the next iteration.
For example, the following code prints the number 0 to 9, except 5.



<source lang="java">
public class MainClass {
public static void main(String[] args) {
for (int i = 0; i < 10; i++) {
if (i == 5) {
continue;
}
System.out.println(i);
}
}
}</source>



== The continue statement: skips all or part of a loop iteration ==



<source lang="java">
public class MainClass {
public static void main(String[] arg) {
int limit = 10;
int sum = 0;
for (int i = 1; i <= limit; i++) {
if (i % 3 == 0) {
continue;
}
sum += i;
}
System.out.println(sum);
}
}</source>



<pre class=codeResult>37</pre>

== The Labeled continue statement ==



<source lang="java">
public class MainClass {
public static void main(String[] args) {
int limit = 20;
int factorial = 1;
OuterLoop: for (int i = 1; i <= limit; i++) {
factorial = 1;
for (int j = 2; j <= i; j++) {
if (i > 10 && i % 2 == 1) {
continue OuterLoop;
}
factorial *= j;
}
System.out.println(i + "! is " + factorial);
}
}
}</source>



<pre class=codeResult>1! is 1
2! is 2
3! is 6
4! is 24
5! is 120
6! is 720
7! is 5040
8! is 40320
9! is 362880
10! is 3628800
12! is 479001600
14! is 1278945280
16! is 2004189184
18! is -898433024
20! is -2102132736</pre>

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Java Tutorial/Statement Control/Continue Statement - История изменений

Admin: 1 версия

в 17:44, 31 мая 2010