譬如有這么一個(gè)類interface ITreeNode{
public ITreeNode getParent(){return parent;}
public List getSons() {return sons;}
}現(xiàn)在的問題是：如果有個(gè)類RealTreeNode從它繼承，結(jié)果一定是這樣：class RealTreeNode implements ITreeNode{
List sons;
RealTreeNode parent;
public ITreeNode getParent(){return parent;}
public List getSons() {return sons;}
}我希望能是這樣：class RealTreeNode implement ITreeNode{
List sons;
RealTreeNode parent;
public RealTreeNode getParent(){return parent;}
public List getSons() {return sons;}
}換句話說，我希望寫這樣的類的抽象，即包含兩個(gè)方法getParent和getSons，它們返回[b]該類自身[/b]和[b]List<該類自身>[/b]。應(yīng)該如何寫？
3 回答
富國滬深
TA貢獻(xiàn)1790條經(jīng)驗(yàn) 獲得超9個(gè)贊
你試試這個(gè)，不知道行不
public abstract class ITreeNode {
List sons;
ITreeNode parent;ITreeNode(List<ITreeNode> sons, ITreeNode parent) {
this.sons = sons;
this.parent = parent;
}
public abstract T getParent();
public abstract List<T> getSons();
}
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