Bytecode quizz

Foo.java

public class Foo extends SomeClass implements SomeInterface {
  public static void main(java.lang.String[]);
    Code:
       0: new           #2                  // class Foo
       3: dup           
       4: invokespecial #12                 // Method "<init>":()V
       7: return        

  public Foo();
    Code:
       0: aload_0       
       1: invokespecial #13                 // Method SomeClass."<init>":()V
       4: return        
}

SomeClass.java

public abstract class SomeClass {
  
  public abstract void doThis();
}

SomeInterface.java

public interface SomeInterface {
  
  void doThat();
}