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Singleton: Difference between revisions
→{{header|Vala}}: Singleton!
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(→{{header|Vala}}: Singleton!) |
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% $b counter
4</lang>
=={{header|Vala}}==
<lang Vala>public class Singleton : Object {
static Singleton? instance;
// Private constructor
Singleton() {
}
// Public constructor
public static Singleton get_instance() {
if (instance == null) {
instance = new Singleton();
}
return instance;
}
}
void main() {
Singleton a = Singleton.get_instance();
Singleton b = Singleton.get_instance();
if (a == b) {
print("Equal.\n");
}
}</lang>
{{omit from|AWK}}
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