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Added Tree-Traversal #120

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Merged
merged 1 commit into from
Oct 4, 2020
Merged

Added Tree-Traversal #120

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38 changes: 37 additions & 1 deletion Java/BST.java
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Original file line number Diff line number Diff line change
Expand Up @@ -152,6 +152,36 @@ void inorderTraversal(Node rootNode)
}
}

void preorder()
{
preorderTraversal(this.rootNode);
}

void preorderTraversal(Node rootNode)
{
if(rootNode != null)
{
System.out.print(rootNode.data + " => ");
preorderTraversal(rootNode.leftSideNode);
preorderTraversal(rootNode.rightSideNode);
}
}

void postorder()
{
postorderTraversal(this.rootNode);
}

void postorderTraversal(Node rootNode)
{
if(rootNode != null)
{
postorderTraversal(rootNode.leftSideNode);
postorderTraversal(rootNode.rightSideNode);
System.out.print(rootNode.data + " => ");
}
}

public static void main(String[] args) {
// create a new binary search tree
BST binary_search_tree = CreateBST();
Expand Down Expand Up @@ -191,8 +221,14 @@ public static void main(String[] args) {
}
} while (test != 101);
sc.close();
System.out.println("The BST uptil now is");
System.out.println("The BST uptil now is:");
System.out.println(" -in Inorder Traversal:");
binary_search_tree.inorder();
System.out.println(" -in Preorder Traversal:");
binary_search_tree.preorder();
System.out.println(" -in Postorder Traversal:");
binary_search_tree.postorder();


}

Expand Down