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 9, Problem 3FTE
Explanation of Solution
Given statement:
//Change the very first character of a
//StringBuilder object to 'Z'
str.setCharAt(1, 'Z');
Error in the given statement:
Method “setcharAt ()”:
- The method is used to change the character that is present at the position for the value that is passed in the argument.
- The method will change the value of the specified character to another value...
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Students have asked these similar questions
How does the StringBuilder class’s replace method differ from the String class’s replace method?
// Converts a string to lowercase, and
// displays the string's length
// as well as a count of letters
public class DebugSeven4
{
publicstaticvoidmain(String[] args)
{
String aString ="HELP!! I need to get 37 things DONE today!!";
int numLetters =0.
int stringLength = aString.Length();
System.out.println("In all lowercase, the sentence is: ");
for(int i =0; i < stringLength; i++)
{
char ch = Character.toTheLowerCase(aString.charAt(i));
System.out.print(ch);
if(Character.isLetter(ch))
numLetters--;
}
System.out.println();
System.out.println
("The number of CHARACTERS in the string is " + stringLength);
System.out.println(The number of LETTERS is " + numLetters);
}
}
note:
You can easily replace a portion of text within a String using the String method "replace()". For example:
String svar = "raspberry jam"; svar = svar.replace("jam", "pie"); System.out.println(svar);
will print out:
raspberry pie
A photographer is organizing a photo collection about the national parks in the US and would like to annotate the information about each of the photos into a separate set of files. Write a program that reads the name of a text file containing a list of photo file names. The program then reads the photo file names from the text file, replaces the "_photo.jpg" portion of the file names with "_info.txt", and outputs the modified file names.
Assume the unchanged portion of the photo file names contains only letters and numbers, and the text file stores one photo file name per line. If the text file is empty, the program produces no output.
Chapter 9 Solutions
Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
Ch. 9.2 - Prob. 9.1CPCh. 9.2 - Write an if statement that displays the word digit...Ch. 9.2 - Prob. 9.3CPCh. 9.2 - Write a loop that asks the user, Do you want to...Ch. 9.2 - Prob. 9.5CPCh. 9.2 - Write a loop that counts the number of uppercase...Ch. 9.3 - Prob. 9.7CPCh. 9.3 - Modify the method you wrote for Checkpoint 9.7 so...Ch. 9.3 - Look at the following declaration: String cafeName...Ch. 9.3 - Prob. 9.10CP
Ch. 9.3 - Prob. 9.11CPCh. 9.3 - Prob. 9.12CPCh. 9.3 - Prob. 9.13CPCh. 9.3 - Look at the following code: String str1 = To be,...Ch. 9.3 - Prob. 9.15CPCh. 9.3 - Assume that a program has the following...Ch. 9.4 - Prob. 9.17CPCh. 9.4 - Prob. 9.18CPCh. 9.4 - Prob. 9.19CPCh. 9.4 - Prob. 9.20CPCh. 9.4 - Prob. 9.21CPCh. 9.4 - Prob. 9.22CPCh. 9.4 - Prob. 9.23CPCh. 9.4 - Prob. 9.24CPCh. 9.5 - Prob. 9.25CPCh. 9.5 - Prob. 9.26CPCh. 9.5 - Look at the following string:...Ch. 9.5 - Prob. 9.28CPCh. 9.6 - Write a statement that converts the following...Ch. 9.6 - Prob. 9.30CPCh. 9.6 - Prob. 9.31CPCh. 9 - The isDigit, isLetter, and isLetterOrDigit methods...Ch. 9 - Prob. 2MCCh. 9 - The startsWith, endsWith, and regionMatches...Ch. 9 - The indexOf and lastIndexOf methods are members of...Ch. 9 - Prob. 5MCCh. 9 - Prob. 6MCCh. 9 - Prob. 7MCCh. 9 - Prob. 8MCCh. 9 - Prob. 9MCCh. 9 - Prob. 10MCCh. 9 - To delete a specific character in a StringBuilder...Ch. 9 - Prob. 12MCCh. 9 - Prob. 13MCCh. 9 - These static final variables are members of the...Ch. 9 - Prob. 15TFCh. 9 - Prob. 16TFCh. 9 - True or False: If toLowerCase methods argument is...Ch. 9 - True or False: The startsWith and endsWith methods...Ch. 9 - True or False: There are two versions of the...Ch. 9 - Prob. 20TFCh. 9 - Prob. 21TFCh. 9 - Prob. 22TFCh. 9 - Prob. 23TFCh. 9 - int number = 99; String str; // Convert number to...Ch. 9 - Prob. 2FTECh. 9 - Prob. 3FTECh. 9 - Prob. 4FTECh. 9 - The following if statement determines whether...Ch. 9 - Write a loop that counts the number of space...Ch. 9 - Prob. 3AWCh. 9 - Prob. 4AWCh. 9 - Prob. 5AWCh. 9 - Modify the method you wrote for Algorithm...Ch. 9 - Prob. 7AWCh. 9 - Look at the following string:...Ch. 9 - Assume that d is a double variable. Write an if...Ch. 9 - Write code that displays the contents of the int...Ch. 9 - Prob. 1SACh. 9 - Prob. 2SACh. 9 - Prob. 3SACh. 9 - How can you determine the minimum and maximum...Ch. 9 - Prob. 1PCCh. 9 - Prob. 2PCCh. 9 - Prob. 3PCCh. 9 - Prob. 4PCCh. 9 - Prob. 5PCCh. 9 - Prob. 6PCCh. 9 - Check Writer Write a program that displays a...Ch. 9 - Prob. 8PCCh. 9 - Prob. 9PCCh. 9 - Word Counter Write a program that asks the user...Ch. 9 - Sales Analysis The file SalesData.txt, in this...Ch. 9 - Prob. 12PCCh. 9 - Alphabetic Telephone Number Translator Many...Ch. 9 - Word Separator Write a program that accepts as...Ch. 9 - Pig Latin Write a program that reads a sentence as...Ch. 9 - Prob. 16PCCh. 9 - Lottery Statistics To play the PowerBall lottery,...Ch. 9 - Gas Prices In the student sample program files for...
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