The provided code snippet is syntactically correct in Java, and it adheres to the principles of interfaces and class inheritance. Here's the breakdown:

1. **Interface Declaration**: The interface `A` is declared correctly, including the method `aMethod()`.

2. **Class B Implementation**: Class `B` implements the interface `A` and provides an implementation for the `aMethod()`. The use of the `@Override` annotation indicates that `B` is correctly overriding the method defined in the interface.

3. **Class C Extension**: Class `C` extends class `B`, which means it inherits the implementation of `aMethod()` from class `B`. Since `C` also implements the interface `A`, it is not strictly necessary for `C` to redefine `aMethod()` unless a specific implementation is required.

### Conclusion
The provided code is correct, and it correctly implements the interface and class structure in Java. The program is valid and compiles without errors.

Final Answer: **The program is correct.**

Question

The provided code snippet is syntactically correct in Java, and it adheres to the principles of interfaces and class inheritance. Here's the breakdown:

1. **Interface Declaration**: The interface `A` is declared correctly, including the method `aMethod()`.
  
2. **Class B Implementation**: Class `B` implements the interface `A` and provides an implementation for the `aMethod()`. The use of the `@Override` annotation indicates that `B` is correctly overriding the method defined in the interface.

3. **Class C Extension**: Class `C` extends class `B`, which means it inherits the implementation of `aMethod()` from class `B`. Since `C` also implements the interface `A`, it is not strictly necessary for `C` to redefine `aMethod()` unless a specific implementation is required.

### Conclusion
The provided code is correct, and it correctly implements the interface and class structure in Java. The program is valid and compiles without errors.

Final Answer: **The program is correct.**

Knowee AI · Accepted Answer

The provided code snippet is syntactically correct in Java, and it adheres to the principles of interfaces and class inheritance. Here's the breakdown:

1. **Interface Declaration**: The interface `A` is declared correctly, including the method `aMethod()`.
  
2. **Class B Implementation**: Class `B` implements the interface `A` and provides an implementation for the `aMethod()`. The use of the `@Override` annotation indicates that `B` is correctly overriding the method defined in the interface.

3. **Class C Extension**: Class `C` extends class `B`, which means it inherits the implementation of `aMethod()` from class `B`. Since `C` also implements the interface `A`, it is not strictly necessary for `C` to redefine `aMethod()` unless a specific implementation is required.

### Conclusion
The provided code is correct, and it correctly implements the interface and class structure in Java. The program is valid and compiles without errors.

Final Answer: **The program is correct.**

Chương trình đúng hay sai ?interface A {public void aMethod();}class B implements A{@Overridepublic void aMethod() {}}class C extends B implements A{}

Question

Chương trình đúng hay sai ?

Solution

Conclusion

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