singleton class
What is singleton class?View Answers
October 29, 2010 at 4:48 PM
Hi,
A class whose number of instances that can be instantiated is limited to one is called a singleton class. Thus, at any given time only one instance can exist, no more.
public class Single {
private static Single a;
private Single() {
}
public static Single getSingle() {
if (a == null) {
a = new Single();
}
return a;
}
public static void main(String... s) {
Single a1 = Single.getSingle();
Single a2 = Single.getSingle();
System.out.println(a1);
System.out.println(a2);
}
}
This program give the out put as-
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Thanks.
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