Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
3rd Edition
ISBN: 9780134038179
Author: Tony Gaddis, Godfrey Muganda
Publisher: PEARSON
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Chapter 21, Problem 1SA

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Stack:

A stack is a linear data structure. It follows FILO (first in last out) or LIFO (last-in-first-out).

  • The two main operations performed on a stack are,
    • Push() – Adds item to stack.
    • Pop() – Removes item from stack.
  • The stack is the container used to store objects which are added and removed in last-in-first-out (LIFO) or first-in-last-out (FILO) fashion.
  • The stack has only one end for adding and removing items.
    • So when the method “pop()” is called on a stack, it removes the item that is added recently on the stack.
    • The first added item can be removed last...

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A Java collection is any class that implements the Collection interface. O True False
class Solution(object): def longestCommonPrefix(self, strs): result ="" for i in strs[0]: for j in strs[1]: for k in strs[2]: if i == j and i == k: result+=i if len(result) >0: return result else: return result   IndexError: list index out of range for j in strs[1]: Line 5 in longestCommonPrefix (Solution.py) ret = Solution().longestCommonPrefix(param_1) Line 31 in _driver (Solution.py) _driver() Line 41 in <module> (Solution.py) can someone explain why this is wrong?
Generics enable you to specify the exact type that will be stored in a collection and give you the benefits of compile-time type checking—the compiler issues error messages if you use inappropriate types in your collections. Once you specify the type stored in a generic collection, any reference you retrieve from the collection will have that type. Instructions Write a program that inserts 25 random integers from 0 to 100 in order into Java’s LinkedList object (you must use Java’s LinkedList class to get any credit for this assignment).   The program must: sort the elements, then calculate the sum of the elements, and calculate the floating-point average of the elements.   For this assignments make sure that your screen shot(s) show your program running and that your runtime display shows your random list, sorted list, sum of the elements, and average of the elements.  You only get credit for what you demonstrate.  Below is a sample screen shot.  Your output doesn’t have to look…
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