1
我需要將Hashmap
綁定到MutableTreeNode
,以便我可以將其顯示在JTree
中。將HashMap <String,String>綁定到MutableTreeNode
我有以下代碼:
static Map<String, String> form = new LinkedHashMap<String,String>();
我想這就是我需要實現MutableTreeNode
。我現在只是不知道如何開始獲取鑰匙的「形式」出現在MutableTreeNode
。
public class MyNode implements MutableTreeNode {
@Override
public Enumeration children() {
// TODO Auto-generated method stub
return null;
}
@Override
public boolean getAllowsChildren() {
// TODO Auto-generated method stub
return false;
}
@Override
public TreeNode getChildAt(int childIndex) {
// TODO Auto-generated method stub
return null;
}
@Override
public int getChildCount() {
// TODO Auto-generated method stub
return 0;
}
@Override
public int getIndex(TreeNode node) {
// TODO Auto-generated method stub
return 0;
}
@Override
public TreeNode getParent() {
// TODO Auto-generated method stub
return null;
}
@Override
public boolean isLeaf() {
// TODO Auto-generated method stub
return false;
}
@Override
public void insert(MutableTreeNode arg0, int arg1) {
// TODO Auto-generated method stub
}
@Override
public void remove(int arg0) {
// TODO Auto-generated method stub
}
@Override
public void remove(MutableTreeNode arg0) {
// TODO Auto-generated method stub
}
@Override
public void removeFromParent() {
// TODO Auto-generated method stub
}
@Override
public void setParent(MutableTreeNode arg0) {
// TODO Auto-generated method stub
}
@Override
public void setUserObject(Object arg0) {
// TODO Auto-generated method stub
}
後MutableTreeNode
正確顯示正確的Key
價值,我希望能夠做到:
final JTree tree = new JTree();
final DefaultMutableTreeNode CustomNode = new DefaultMutableTreeNode("Custom");
DefaultTreeModel tm = new DefaultTreeModel(CustomNode);
tree.setModel(tm);
for (String str : form.keySet())
{
MyNode nod = new MyNode(str);
CustomNode.add(node);
}
tm.reload();
無關:請學習java命名約定並堅持使用它們。 – kleopatra
你是什麼意思? – Omid
_naming conventions_中很難理解什麼? – kleopatra