下列关于Test 类的定义中，正确的是：
A.class Test implements Runnable {
public void run(){}
public void someMethod(){}
}
B.class Test implements Runnable {
public void run();
}
C.class Test implements Runnable {
public void someMethod();
}
D.class Test implements Runnable {
public void someMethod(){}
}
正确答案A 