关于接口问题....,请帮忙看下....

Question

interface BroadbandService
{
void connect();
void disconnect();
}interface VirusKillingService
{
void scanVirus();
}interface MailboxService
{
void sendMail();
void receiveMail();
void writeMail();
void deleteMail();
}class BroadbandServiceImpl implements BroadbandService
{
int intVarSpeed;

public BroadbandServiceImpl(int intVarSpeed)
{
this.intVarSpeed=intVarSpeed;
}

public void connect()
{
}

public void disconnect()
{
} 
}class VirusKillingServiceImpl implements VirusKillingService
{
public void scanVirus()
{
}
}class MailboxServiceImpl implements MailboxService
{
int intVarCapacity;

public MailboxServiceImpl(int intVarCapacity)
{
this.intVarCapacity=intVarCapacity;
}

public void sendMail()
{
}

public void receiveMail()
{
}

public void writeMail()
{
}

public void deleteMail()
{
}
}interface SuperSpeedCombo extends BroadbandService,VirusKillingService,MailboxService
{
}public class SuperSpeedComboImpl implements SuperSpeedCombo 
{
public static void main(String[] args)
{
}
}请问如何在 类SuperSpeedComboImpl中实现SuperSpeedCombo? 谢谢

Answer 1

public class SuperSpeedComboImpl implements SuperSpeedCombo{
   
    //添加未实现的方法就可以了
}

Answer 2

public static class SuperSpeedComboImpl implements SuperSpeedCombo  
{ 
public static void main(String[] args) 
{ 
} 
public void connect() {

}
public void disconnect() {

}
public void sendMail() {

}
public void writeMail() {

}
public void deleteMail() {

}
public void receiveMail() {

}
public void scanVirus() {

}
} 

Answer 3

这样又相当于重写了一遍,,,
相当于
public class SuperSpeedComboImpl implements BroadbandService,VirusKillingService,MailboxService   
{ 
},
功能一样

Answer 4

你也可以写一个类BaseSuperSpeedCombo直接实现接口SuperSpeedCombo，然后SuperSpeedComboImpl extends BaseSuperSpeedCombo。这样，SuperSpeedComboImpl就不用实现SuperSpeedCombo中定义的接口了。不管如何，你终归得实现接口里面定义的方法，无论在哪里

Answer 5

interface SuperSpeedCombo extends BroadbandService,VirusKillingService,MailboxService 
{ 
} 路过提问~~~~~java中不是只能单继承，但可以多实现接口么？上面这为什么可以集成多继承？是只有接口才能这样么？