Pragmatic directives: Difference between revisions
New post.
No edit summary |
(New post.) |
||
Line 385:
3 :'y.]y=.7' 8
7</syntaxhighlight>
=={{header|Java}}==
The closest things which Java has to pragmatic directives are annotations which begin with the @ character.
<syntaxhighlight lang="java">
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public final class PragmaticDirectives {
public static void main(String[] aArgs) {
/* Take no action */
}
@FunctionalInterface
public interface Adder { // This annotation indicates a functional interface,
abstract int add(int a, int b); // which has exactly one abstract method.
}
@Deprecated
public void Display() {
System.out.println("This author is indicating that this method is deprecated");
System.out.println("Note that the IDE has converted the method name to 'strikethrough' text");
}
@SuppressWarnings("unchecked")
public void uncheckedWarning() {
List words = new ArrayList();
words.add("hello");
System.out.println("THe compiler is warning that the generic type declaration is missing.");
System.out.println("The correct syntax is: List<String> words = new ArrayList<String>()");
}
@SafeVarargs
public static <T> List<T> list(final T... items) {
System.out.println("This annotation suppresses unchecked warnings about a non-reifiable variable arity type");
return Arrays.asList(items);
}
}
</syntaxhighlight>
=={{header|Julia}}==
| |||