试题详情
单项选择题 public interface A {  String DEFAULT_GREETING = “Hello World”；  public void method1（）；  }  A programmer wants to create an interface called B that has A as its parent. Which interface declaration is correct？（） 

A、 public interface B extends A {}

B、 public interface B implements A {}

C、 public interface B instanceOf A {}

D、 public interface B inheritsFrom A {}

  • A

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