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 1P
Write a
How many numbers will you enter?
4
Enter 4 integers, one per line :
2
1
1
2
The sum is 6.
The numbers are :
2, Which is 33.3333% of the sum.
1, Which is 16.6666% of the sum.
1, Which is 16.6666% of the sum.
2, Which is 33.3333% of the sum.
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4. Remove all occurrences of a
particular element from an array
Consider an array named source. Write a
method/function named removeAll( source,
size, element) that removes all the
occurrences of the given element in the
source array. You must execute the method
by passing an array, its size and the
element to be removed. After calling the
method, print the array to show whether all
the occurrences of the element have been
removed properly.
nmm" Use Python
Example:
source=[10,2,30,2,50,2,2,60,0,0]
removeAll(source,8,2)
After calling removeAll(source,8,2), all the
occurrences of 2 must be removed.
Printing the array afterwards should give
the output as:
[ 10,30,50,60,0,0,0,0,0,0]
Write a program that lets the user enter the total rainfall for each of 12 months (starting with January) into an array of doubles.
The program should calculate and display (in this order):
the total rainfall for the year,
the average monthly rainfall,
and the months with the highest and lowest amounts.
Months should be expressed as English names for months in the Gregorian calendar, i.e.: January, February, March, April, May, June, July, August, September, October, November, December.
Do not accept negative numbers for monthly rainfall figures.
When a negative value is entered, the program outputs "invalid data (negative rainfall) -- retry" and attempts to reread the value.
NOTE: Decimal values should be displayed using default precision, i.e. do not specify precision.
Write a program that reads in ten numbers and displays the number of distinct numbers and
the distinct numbers separated by exactly one space (i.e., if a number appears multiple times,
it is displayed only once). (Hint:Read a number and store it to an array if it is new. If the number
is already in the array, ignore it. While solving the question please use an array.) After the
input, the array contains the distinct numbers. Here is the sample run of the program:
Enter ten numbers: 1 2 3 21634 5 2
The number of distinct number is 6.
The distinct numbers are: 123645
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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