String items [] = {"A", "B", "C", "D", "A", "F"}; // create an empty stack, queue, and set. Stack stack = new Stack(); Queue queue = new Queue(); Set set = new Set(); //loop through all items and add them to the stack, queue, and set for(String item: items)

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Consider this pseudocode:
String items [] = {"A", "B", "C", "D", "A", "F"};
// create an empty stack, queue, and set.
Stack stack = new Stack();
Queue queue = new Queue();
Set set = new Set();
//loop through all items and add them to the stack, queue, and set
for(String item: items) {
stack.push(item);
queue.enqueue(item);
set.add(item);
}
13. What is the content of the stack after executing the above code?
14. What is the content of the queue after executing the above code?
Transcribed Image Text:Consider this pseudocode: String items [] = {"A", "B", "C", "D", "A", "F"}; // create an empty stack, queue, and set. Stack stack = new Stack(); Queue queue = new Queue(); Set set = new Set(); //loop through all items and add them to the stack, queue, and set for(String item: items) { stack.push(item); queue.enqueue(item); set.add(item); } 13. What is the content of the stack after executing the above code? 14. What is the content of the queue after executing the above code?
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Follow-up Questions
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Follow-up Question
15. What is the content of the set after executing the above code?
16. What is the output of this pseudocode?
while
(!stack.isEmpty())
print(stack.pop());
17. What is the output of this pseudocode?
while(!queue.isEmpty())
print(queue.dequeue());
Transcribed Image Text:15. What is the content of the set after executing the above code? 16. What is the output of this pseudocode? while (!stack.isEmpty()) print(stack.pop()); 17. What is the output of this pseudocode? while(!queue.isEmpty()) print(queue.dequeue());
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