Set: add(String e) : Set « java.util « Java by API
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- java.util
- Set
Set: add(String e)
import java.util.HashSet;
import java.util.Set;
public class Main {
public static void main(String[] a) {
Set<String> set = new HashSet<String>();
set.add("Hello");
if (set.add("Hello")) {
System.out.println("addition successful");
} else {
System.out.println("addition failed");
}
}
}
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