Introduction to Java Programming and Data Structures, Comprehensive Version Plus MyProgrammingLab with Pearson EText -- Access Card Package
11th Edition
ISBN: 9780134694511
Author: Liang, Y. Daniel
Publisher: Pearson Education Canada
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Chapter 20.8, Problem 20.8.2CP
Explanation of Solution
The following modification of the code is to remove the ball when “-”button is clicked.
//Define the method subtract()
public void subtract() {
//Check whether the list is greater than 0
if (list.size() > 0)
// Remove the last ball
list.remove(list.size() - 1);
}
Explanation:
- The “MultipleBallApp...
Expert Solution & Answer
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This problem has you write a nested loop to process a list of list of int, and accumulate a list of list of int. The starter code
provides an accumulator for the result and a loop over the lists, and you need to write the code that checks whether sublist contains only
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need to check the value of this variable to figure out whether to append sublist to the even_lists accumulator.
1 def only_evens (1st: list[list[int]]) -> list[list[int]]:
"""Return a list of the lists in 1st that contain only even integers.
4
>>> only_evens ([[1, 2, 4], [4, 0, 6], [22, 4, 3], [2]])
[[4, 0, 6], [2]]
6.
8.
even_lists =
[]
10
for sublist in 1st:
11
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# write your code here (please read above for a suggested approach)
13
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return even_lists
This problem has you write a nested loop to process a list of list of int, and accumulate a list of list of int. The starter code
provides an accumulator for the result and a loop over the lists, and you need to write the code that checks whether sublist contains only
even ints.
You'll probably want a one-way flag: a Boolean variable that starts out as True and is set to False if you find an odd int in the sublist. You'll
need to check the value of this variable to figure out whether to append sublist to the even_lists accumulator.
1 def only evens (1st: list[list[int]]) -> list[list[int]]:
**"Return a list of the lists in 1st that contain only even integers.
2.
3.
>>> only_evens ([[1, 2, 4], [4, e, 6], [22, 4, 3], [2]])
4.
[[4, e, 6], [2]]
8.
even_lists = []
10
for sublist in 1st:
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12
13
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return even_lists
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Chapter 20 Solutions
Introduction to Java Programming and Data Structures, Comprehensive Version Plus MyProgrammingLab with Pearson EText -- Access Card Package
Ch. 20.2 - Prob. 20.2.1CPCh. 20.2 - Prob. 20.2.2CPCh. 20.2 - Prob. 20.2.3CPCh. 20.2 - Prob. 20.2.4CPCh. 20.2 - Prob. 20.2.5CPCh. 20.3 - Prob. 20.3.1CPCh. 20.3 - Prob. 20.3.2CPCh. 20.3 - Prob. 20.3.3CPCh. 20.3 - Prob. 20.3.4CPCh. 20.4 - Prob. 20.4.1CP
Ch. 20.4 - Prob. 20.4.2CPCh. 20.5 - Prob. 20.5.1CPCh. 20.5 - Suppose list1 is a list that contains the strings...Ch. 20.5 - Prob. 20.5.3CPCh. 20.5 - Prob. 20.5.4CPCh. 20.5 - Prob. 20.5.5CPCh. 20.6 - Prob. 20.6.1CPCh. 20.6 - Prob. 20.6.2CPCh. 20.6 - Write a lambda expression to create a comparator...Ch. 20.6 - Prob. 20.6.4CPCh. 20.6 - Write a statement that sorts an array of Point2D...Ch. 20.6 - Write a statement that sorts an ArrayList of...Ch. 20.6 - Write a statement that sorts a two-dimensional...Ch. 20.6 - Write a statement that sorts a two-dimensional...Ch. 20.7 - Are all the methods in the Collections class...Ch. 20.7 - Prob. 20.7.2CPCh. 20.7 - Show the output of the following code: import...Ch. 20.7 - Prob. 20.7.4CPCh. 20.7 - Prob. 20.7.5CPCh. 20.7 - Prob. 20.7.6CPCh. 20.8 - Prob. 20.8.1CPCh. 20.8 - Prob. 20.8.2CPCh. 20.8 - Prob. 20.8.3CPCh. 20.9 - How do you create an instance of Vector? How do...Ch. 20.9 - How do you create an instance of Stack? How do you...Ch. 20.9 - Prob. 20.9.3CPCh. 20.10 - Prob. 20.10.1CPCh. 20.10 - Prob. 20.10.2CPCh. 20.10 - Prob. 20.10.3CPCh. 20.11 - Can the EvaluateExpression program evaluate the...Ch. 20.11 - Prob. 20.11.2CPCh. 20.11 - If you enter an expression "4 + 5 5 5", the...Ch. 20 - (Display words in ascending alphabetical order)...Ch. 20 - (Store numbers in a linked list) Write a program...Ch. 20 - (Guessing the capitals) Rewrite Programming...Ch. 20 - (Sort points in a plane) Write a program that...Ch. 20 - (Combine colliding bouncing balls) The example in...Ch. 20 - (Game: lottery) Revise Programming Exercise 3.15...Ch. 20 - Prob. 20.9PECh. 20 - Prob. 20.10PECh. 20 - (Match grouping symbols) A Java program contains...Ch. 20 - Prob. 20.12PECh. 20 - Prob. 20.14PECh. 20 - Prob. 20.16PECh. 20 - (Directory size) Listing 18.10,...Ch. 20 - Prob. 20.20PECh. 20 - (Nonrecursive Tower of Hanoi) Implement the...Ch. 20 - Evaluate expression Modify Listing 20.12,...
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