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Java Java Annotations Writing Your Own Annotation Putting It All Together

Benjamin Cha
Benjamin Cha
2,761 Points
Posted by Benjamin Cha
Benjamin Cha
2,761 Points

How to add import statements?

I'm not that sure on how to add the import statements outside the classes I'm using. Does anybody know the answer?

Test.java 
import java.lang.annotation.*;

@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.METHOD}) 
public @interface Test { 
   int num() default 1;
   boolean enabled() default true;
}
SocialNetworkTest.java 
public class SocialNetworkTest {
  @Test(num = 4, enabled = false)
  public void testTweet() {

  }
  @Test(num = 5, enabled = false)
  public void testInsta() { 

  }
  @Test(num = 6, enabled = false)
  public void testFacebook() { 

  }

  public void testPinterest() { 

  }

  public void testSnapchat() { 

  }
}
TestAnalyzer.java 
public class TestAnalyzer {
  /**
   *  Counts the number of methods in the class given by `clazz` that have been annotated
   *  with the @Test annotation.
   */
   public static int getNumAnnotatedMethods(Class<?> clazz) {
        int numAnnotatedMethods = 0;
        Method[] methods = clazz.getDeclaredMethods();

        for (Method method : methods) {
            if (method.isAnnotationPresent(Test.class)) {
                numAnnotatedMethods++;
            }
        }

        return numAnnotatedMethods;
    }

    // Example usage:
    public static void main(String[] args) {
        // Assuming `SocialNetworkTest` is the class to analyze
        int numAnnotated = getNumAnnotatedMethods(SocialNetworkTest.class);
        System.out.println("Number of annotated methods: " + numAnnotated);
    }
}

1 Answer

Rachel Johnson
STAFF
Rachel Johnson
Treehouse Teacher
Rachel Johnson
Rachel Johnson
Treehouse Teacher

Hey Benjamin Cha , thanks for sharing your question!

It looks like you're missing an import statement for Method, which you're using in TestAnalyzer.java

So, be sure to do so at the top of the file, before declaring the class: 

import java.lang.reflect.Method;

public class TestAnalyzer {
    ...//stuff
}