Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
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Textbook Question
Chapter 7, Problem 9E
Write a static method removeDuplicates(Character[] in) that returns a new array of the characters in the given array, but without any duplicate characters. Always keep the first copy of the character and remove subsequent ones. For example, if in contains b, d, a, b, f, a, g, a, a, and f, the method will return an array containing b, d, a, f, and g. (Hint: One way to solve this problem is to create a boolean array of the same size as the given array in and use it to keep track of which characters to keep. The values in the new boolean array will determine the size of the array to return.)
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Problem: Write a method that will determine whether a given value can be made given an array of coin values. For example, each
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Chapter 7 Solutions
Java: An Introduction to Problem Solving and Programming (8th Edition)
Ch. 7.1 - What output will be produced by the following...Ch. 7.1 - What output will be produced by the following...Ch. 7.1 - What output will be produced by the following...Ch. 7.1 - Consider the following array: int [] a = new...Ch. 7.1 - What is wrong with the following code to...Ch. 7.1 - Write a complete Java program that reads 20 values...Ch. 7.2 - Write some Java code that will declare an array...Ch. 7.2 - Rewrite the method displayResults of the program...Ch. 7.2 - What output will be produced by the following...Ch. 7.2 - Give the definition of a static method called...
Ch. 7.2 - Give the definition of a static method called...Ch. 7.2 - Prob. 12STQCh. 7.2 - The following method compiles and executes but...Ch. 7.2 - Suppose that we add the following method to the...Ch. 7.3 - Prob. 15STQCh. 7.3 - Replace the last loop in Listing 7.8 with a loop...Ch. 7.3 - Suppose a is an array of values of type double....Ch. 7.3 - Suppose a is an array of values of type double...Ch. 7.3 - Prob. 19STQCh. 7.3 - Consider the partially filled array a from...Ch. 7.3 - Repeat the previous question, but this time assume...Ch. 7.3 - Write an accessor method getEntryArray for the...Ch. 7.4 - Prob. 23STQCh. 7.4 - Write the invocation of the method selectionSort...Ch. 7.4 - How would you need to change the method...Ch. 7.4 - How would you need to change the method...Ch. 7.4 - Consider an array b of int values in which a value...Ch. 7.5 - What output is produced by the following code?...Ch. 7.5 - Revise the method showTable in Listing 7.13 so...Ch. 7.5 - Write code that will fill the following array a...Ch. 7.5 - Write a void method called display such that the...Ch. 7.6 - Prob. 33STQCh. 7.6 - Prob. 34STQCh. 7 - Write a program in a class NumberAboveAverage that...Ch. 7 - Write a program in a class CountFamiles that...Ch. 7 - Write a program in a class CountPoor that counts...Ch. 7 - Write a program in a class FlowerCounter that...Ch. 7 - Write a program in a class characterFrequency that...Ch. 7 - Create a class Ledger that will record the sales...Ch. 7 - Define the following methods for the class Ledger,...Ch. 7 - Write a static method isStrictlyIncreasing (double...Ch. 7 - Write a static method removeDuplicates(Character[]...Ch. 7 - Write a static method remove {int v, int [] in}...Ch. 7 - Suppose that we are selling boxes of candy for a...Ch. 7 - Create a class polynomial that is used to evaluate...Ch. 7 - Write a method beyond LastEntry (position) for the...Ch. 7 - Revise the class OneWayNoRepeatsList, as given in...Ch. 7 - Write a static method for selection sort that will...Ch. 7 - Overload the method selectionSort in Listing 7.10...Ch. 7 - Revise the method selectionSort that appears in...Ch. 7 - Prob. 18ECh. 7 - Write a sequential search of an array of integers,...Ch. 7 - Write a static method findFigure (picture,...Ch. 7 - Write a static method blur (double [] [] picture)...Ch. 7 - Write a program that reads integers, one per line,...Ch. 7 - The following code creates a small phone book. An...Ch. 7 - Write the method rotateRight that takes an array...Ch. 7 - The following code creates a ragged 2D array. The...Ch. 7 - Write a program that will read a line of text that...Ch. 7 - A palindrome is a word or phrase that reads the...Ch. 7 - Add a method bubbleSort to the class ArraySorter,...Ch. 7 - Add a method insertionSort to the class...Ch. 7 - The class TimeBook in Listing 7.14 is not really...Ch. 7 - Define a class called TicTacToe. An object of type...Ch. 7 - Repeat Programming Project 10 from Chapter 5 but...Ch. 7 - Prob. 8PPCh. 7 - Write a GUI application that displays a picture of...Ch. 7 - ELIZA was a program written in 1966 that parodied...Ch. 7 - Prob. 11PPCh. 7 - Create a GUI application that draws the following...Ch. 7 - Practice Program 2 used two arrays to implement a...Ch. 7 - Practice Program 5.4 asked you to define Trivia...
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