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標(biāo)題: Java多接口繼承同名方法沖突問題 [打印本頁]

作者: 51黑ren 時(shí)間: 2015-12-27 03:11
標(biāo)題: Java多接口繼承同名方法沖突問題
同一個(gè)包中，假定有2個(gè)基礎(chǔ)接口NetAddress(網(wǎng)絡(luò)地址)和PhysicalAddress(物理地址)，并有一個(gè)子接口IPv4Address同時(shí)implements上述兩個(gè)接口，如下所示:
NetAddress(網(wǎng)絡(luò)地址)
public interface NetAddress {
   byte[]ipv4=new byte[4];
   publicvoid SetAddress(byte InitIpv4[]);

}

PhysicalAddress(物理地址)
public interface PhysicalAddress {
byte []mac=new byte[6];
public void  SetAddress(byteInitMac[]);
}

IPv4Address
public class IPv4Address implementsNetAddress,PhysicalAddress{
public void SetAddress(byte InitAddress[])
   {
      //是給ipv4賦值還是給mac賦值呢？
   }
}

由于NetAddress和PhysicalAddress都有同名的SetAddress，eclipse會(huì)默認(rèn)IPv4Address中的SetAddress方法是對(duì)NetAddress中SetAddress實(shí)現(xiàn)，原因是兩個(gè)父接口的SetAddress不僅名稱相同，連參數(shù)類型(簽名)也相同，解決辦法只能在父接口中盡量減少這種方法沖突：

NetAddress(網(wǎng)絡(luò)地址)
public interface NetAddress {
   byte[]ipv4=new byte[4];
   publicvoid SetIpv4(byte InitIpv4[]);

}

PhysicalAddress(物理地址)
public interface PhysicalAddress {
byte []mac=new byte[6];
public void  SetMac(byteInitMac[]);
}

IPv4Address
public class IPv4Address implementsNetAddress,PhysicalAddress{
public void SetIpv4(byte IPv4[])
   {
      //給IP地址賦值
   }

      publicvoid  SetMac(byte Mac[]);
   {
      //給Mac地址賦值
   }
}

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