Pseudo-random numbers/Middle-square method: Difference between revisions
Pseudo-random numbers/Middle-square method (view source)
Revision as of 13:52, 29 May 2023
, 11 months agoNew post
(New post) |
|||
Line 814:
{{out}}
<pre>959861 333139 981593 524817 432883 387691</pre>
=={{header|Java}}==
<syntaxhighlight lang="java">
public final class MiddleSquareTask {
public static void main(String[] aArgs) {
MiddleSquare random = new MiddleSquare(675248);
for ( int i = 0; i < 5; i++ ) {
System.out.println(random.nextInt());
}
}
}
final class MiddleSquare {
public MiddleSquare(int aSeed) {
final int length = String.valueOf(aSeed).length();
if ( length % 2 == 1 ) {
throw new IllegalArgumentException("Seed must have an even number of digits");
}
state = aSeed;
divisor = (int) Math.pow(10, length / 2);
modulus = (int) Math.pow(10, length);
}
public int nextInt() {
state = ( ( state * state ) / divisor ) % modulus;
return (int) state;
}
private long state;
private final int divisor, modulus;
}
</syntaxhighlight>
{{ out }}
<pre>
959861
333139
981593
524817
432883
</pre>
=={{header|jq}}==
| |||