java - Print the elements in the tree that start with a vowel in reverse alphabetic order -

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in given binary search program have print elements in tree start vowel in reverse alphabetic order. unable it. leaving nodes without traversing. please help.

public void reverseordertr() {     reverseordert(root); }  private void reverseordert(binarytreenode t) {     if (t != null) {         string v = t.nodedata;         char tav = (character.touppercase(v.charat(0)));         if (tav == 'a' ||                 tav == 'e' ||                 tav == 'i' ||                 tav == 'o' ||                 tav == 'u') {             reverseordert(t.rightnode);             system.out.print(t.nodedata + " ");             reverseordert(t.leftnode);         }     } }

you traversing subnodes of nodes vowel-starting data.

move test deeper block, around print function.


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