Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
11th Edition
ISBN: 9780134670942
Author: Y. Daniel Liang
Publisher: PEARSON
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Textbook Question
Chapter 13, Problem 13.2PE
(Shuffle ArrayList) Write the following method that shuffles an ArrayList of numbers:
public static void shuffle(ArrayList<Number> list)
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(Sort ArrayList)
Write the following method that sorts an ArrayList:
public static <E extends Comparable<E>> void sort(ArrayList<E> list)
Write a test program that prompts the user to enter 10 integers, invokes this method to sort the numbers, and displays the numbers in increasing order.
Sample Run
Enter 10 integers: 3 4 12 7 3 4 5 6 4 7
The sorted numbers are 3 3 4 4 4 5 6 7 7 12
Class Name: Exercise19_09
Method Details:
public static void rotate(int[] array, boolean leftRotation, int positions)
Rotates the provided array left if leftRotation is true; right otherwise. The number of positions to rotate is determined by positions. For example, rotating the array 10, 20, 7, 8 two positions to the left will update the array to 7, 8, 10, 20. Only arrays with 2 or more elements will be rotated. Hint: adding private methods that rotate an array one position to the left and one position to the right can help.
Parameters:
array -
leftRotation -
positions -
Throws:java.lang.IllegalArgumentException - When a null array parameter is provided
(Algebra: perfect square
)
Write a program that prompts the user to enter an integer
m
and find the smallest integer
n
such that
m * n
is a perfect square.
(Hint: Store all smallest factors of
m
into an array list.
n
is the product of the factors that appear an odd number of times in the array list.
For example, consider
m
= 90, store the factors 2, 3, 3, 5 in an array list. 2 and 5 appear an odd number of times in the array list. So,
n
is 10.)
Sample Run 1
Enter an integer m: 1500
The smallest number n for m x n to be a perfect square is 15
m x n is 22500
Sample Run 2
Enter an integer m: 63
The smallest number n for m x n to be a perfect square is 7
m x n is 441
Class Name:
Exercise11_17
Answer is :
import java.util.Scanner;
public class Squares { public static void main(String[] args) { Scanner scan = new Scanner(System.in); //instantiation of Scanner that will take inputs from the keyboard
//the try catch block below is for trapping error with the input try {…
Chapter 13 Solutions
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Ch. 13.2 - Prob. 13.2.1CPCh. 13.2 - The getArea() and getPerimeter() methods may be...Ch. 13.2 - True or false? a.An abstract class can be used...Ch. 13.3 - Prob. 13.3.1CPCh. 13.3 - Prob. 13.3.2CPCh. 13.3 - Prob. 13.3.3CPCh. 13.3 - What is wrong in the following code? (Note the...Ch. 13.3 - What is wrong in the following code? public class...Ch. 13.4 - Can you create a Calendar object using the...Ch. 13.4 - Prob. 13.4.2CP
Ch. 13.4 - How do you create a Calendar object for the...Ch. 13.4 - For a Calendar object c, how do you get its year,...Ch. 13.5 - Prob. 13.5.1CPCh. 13.5 - Prob. 13.5.2CPCh. 13.5 - Prob. 13.5.3CPCh. 13.5 - Prob. 13.5.4CPCh. 13.6 - Prob. 13.6.1CPCh. 13.6 - Prob. 13.6.2CPCh. 13.6 - Can the following code be compiled? Why? Integer...Ch. 13.6 - Prob. 13.6.4CPCh. 13.6 - What is wrong in the following code? public class...Ch. 13.6 - Prob. 13.6.6CPCh. 13.6 - Listing 13.5 has an error. If you add list.add...Ch. 13.7 - Can a class invoke the super.clone() when...Ch. 13.7 - Prob. 13.7.2CPCh. 13.7 - Show the output of the following code:...Ch. 13.7 - Prob. 13.7.4CPCh. 13.7 - What is wrong in the following code? public class...Ch. 13.7 - Show the output of the following code: public...Ch. 13.8 - Prob. 13.8.1CPCh. 13.8 - Prob. 13.8.2CPCh. 13.8 - Prob. 13.8.3CPCh. 13.9 - Show the output of the following code: Rational r1...Ch. 13.9 - Prob. 13.9.2CPCh. 13.9 - Prob. 13.9.3CPCh. 13.9 - Simplify the code in lines 8285 in Listing 13.13...Ch. 13.9 - Prob. 13.9.5CPCh. 13.9 - The preceding question shows a bug in the toString...Ch. 13.10 - Describe class-design guidelines.Ch. 13 - (Triangle class) Design a new Triangle class that...Ch. 13 - (Shuffle ArrayList) Write the following method...Ch. 13 - (Sort ArrayList) Write the following method that...Ch. 13 - (Display calendars) Rewrite the PrintCalendar...Ch. 13 - (Enable GeometricObject comparable) Modify the...Ch. 13 - Prob. 13.6PECh. 13 - (The Colorable interface) Design an interface...Ch. 13 - (Revise the MyStack class) Rewrite the MyStack...Ch. 13 - Prob. 13.9PECh. 13 - Prob. 13.10PECh. 13 - (The Octagon class) Write a class named Octagon...Ch. 13 - Prob. 13.12PECh. 13 - Prob. 13.13PECh. 13 - (Demonstrate the benefits of encapsulation)...Ch. 13 - Prob. 13.15PECh. 13 - (Math: The Complex class) A complex number is a...Ch. 13 - (Use the Rational class) Write a program that...Ch. 13 - (Convert decimals to fractious) Write a program...Ch. 13 - (Algebra: solve quadratic equations) Rewrite...Ch. 13 - (Algebra: vertex form equations) The equation of a...
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