ListBox, ComboBox, and CheckedListBox objects all allow users to select choices from a list. These three classes descend from what parent class?
A. ListBase
B. ListControl
C. BaseList
D. List
Answer: B
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Write method levelOrder to perform a level-order traversal of a binary tree object. Modify the program of Fig. 22.16 to use this function.
The program of Fig. 22.16 illustrated three recursive methods of traversing a binary tree—inorder, preorder and postorder traversals. This exercise pre- sents the level-order traversal of a binary tree in which the node values are printed level by level, starting at the root node level. The nodes on each level are printed from left to right. The level-order traversal is not a recursive algorithm. It uses a Python built-in list object to control the output of the nodes. The algorithm is as follows: 1) Insert the root node in the list 2) While there are nodes left in the list, Get the next node in the list Print the node’s value If the reference to the left child of the node is not None Insert the left child node in the list If the reference to the right child of the node is not None Insert the right child node in the list.
When dragging and dropping a clip segment from one part of a sequence to another, which is the default type of edit—overwrite or insert?
What will be an ideal response?
What is the semantic gap and what is its importance in computer architecture? You will need to use the Internet or library to answer this question.
What will be an ideal response?
_____ is a popular WYSIWYG editor used by many people and businesses around the world for web development.?
A. ?Adobe Dreamweaver B. ?Notepad C. ?Notepad++ D. ?TextWrangler