[appB] Examples for annotations

package appB;

import org.jetbrains.annotations.NotNull;

public class AnnotationExamples {

  private @NotNull String cannotBeNull = "some value";

  void cannotTakeNullParameter(@NotNull String str) {

    @NotNull String val;

    System.out.println(str.length());

  }

  @NotNull

  String cannotReturnNullValue() {

    return null;

  }

  // if you use @Override on a method that is not from Object, this will give a compiler error

  @Override

  public String toString() {

    return "AnnotationExamples{" +

           "cannotBeNull='" + cannotBeNull + '\'' +

           '}';

  }

}

@FunctionalInterface

interface IntToString {

  String convert(int value);

  // uncomment this to see a compiler error

//  void anotherAbstractMethod();

}

package appB;

import org.junit.jupiter.api.Assertions;

import org.junit.jupiter.api.Disabled;

import org.junit.jupiter.api.Test;

class TestMeTest {

    // then

    Assertions.assertEquals(expectedMessage, testMe.getMessage());

  }

  @Test

  @Disabled("This test isn't finished")

  void thisTestIsForIgnoring() {

    Assertions.fail("Fails on purpose");

  }

}

 No newline at end of file