BIG JAVA: LATE OBJECTS
2nd Edition
ISBN: 9781119626220
Author: Horstmann
Publisher: WILEY
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Expert Solution & Answer
Chapter 7, Problem 1RE
Explanation of Solution
Action happened when the user tries to open a file for reading that doesn’t exist:
- A “FileNotFoundException” would be thrown if the file could not be opened because, there is already a folder named which was given by the user.
- This exception can be thrown when an application tries to open a file for writing, but that file only for read, or the permissions of the file don’t allow the file to be read by any application.
Therefore, Java will throw a “FileNotFoundException” when the user opens a file for reading which doesn’t exist.
Explanation of Solution
Action happened when the user tries to open a file for writing that doesn’t exist:
- The “PrintWriter” class helps to create the object for “PrintWriter” for text file creation and data can be written into that text file.
- If the output file already exists, it is emptied before the new data are written into it.
Therefore, Java will create a new empty file when the user opens a file for writing which doesn’t exist.
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Students have asked these similar questions
Need help answering these questions!1. Design a While loop that lets the user enter a number. The number should be multiplied by 10, and the result stored in a variable named product. The loop should iterate as long as the product contains a value less than 100.
2. Design a For loop that displays the following set of numbers: 0, 10, 20, 30, 40, 50 . . . 1000
3. Convert the While loop in the following code to a Do-While loop:
Declare Integer x = 1
While x > 0
Display "Enter a number."
Input x
End While
Need help with these:Design a While loop that lets the user enter a number. The number should be multiplied by 10, and the result stored in a variable named product. The loop should iterate as long as the product contains a value less than 100.
2. Design a For loop that displays the following set of numbers: 0, 10, 20, 30, 40, 50 . . . 1000
3. Convert the While loop in the following code to a Do-While loop:
Declare Integer x = 1
While x > 0
Display "Enter a number."
Input x
End While
Convert the While loop in the following code to a Do-While loop: Declare Integer x = 1 While x > 0 Display "Enter a number." Input x End While
Chapter 7 Solutions
BIG JAVA: LATE OBJECTS
Ch. 7.1 - Prob. 1SCCh. 7.1 - Prob. 2SCCh. 7.1 - Prob. 3SCCh. 7.1 - Prob. 4SCCh. 7.1 - Prob. 5SCCh. 7.2 - Prob. 6SCCh. 7.2 - Prob. 7SCCh. 7.2 - Prob. 8SCCh. 7.2 - Prob. 9SCCh. 7.2 - Prob. 10SC
Ch. 7.3 - Prob. 11SCCh. 7.3 - Prob. 12SCCh. 7.3 - Prob. 13SCCh. 7.3 - Prob. 14SCCh. 7.3 - Prob. 15SCCh. 7.4 - Prob. 16SCCh. 7.4 - Prob. 17SCCh. 7.4 - Prob. 18SCCh. 7.4 - Prob. 19SCCh. 7.4 - Prob. 20SCCh. 7.4 - Prob. 21SCCh. 7.5 - Prob. 22SCCh. 7.5 - Prob. 23SCCh. 7.5 - Prob. 24SCCh. 7.5 - Prob. 25SCCh. 7.5 - Prob. 26SCCh. 7 - Prob. 1RECh. 7 - Prob. 2RECh. 7 - Prob. 3RECh. 7 - Prob. 4RECh. 7 - Prob. 5RECh. 7 - Prob. 6RECh. 7 - Prob. 7RECh. 7 - Prob. 8RECh. 7 - Prob. 9RECh. 7 - Prob. 10RECh. 7 - Prob. 11RECh. 7 - Prob. 12RECh. 7 - Prob. 13RECh. 7 - Prob. 14RECh. 7 - Prob. 15RECh. 7 - Prob. 16RECh. 7 - Prob. 17RECh. 7 - Prob. 18RECh. 7 - Prob. 1PECh. 7 - Prob. 2PECh. 7 - Prob. 3PECh. 7 - Prob. 4PECh. 7 - Prob. 5PECh. 7 - Prob. 6PECh. 7 - Prob. 7PECh. 7 - Prob. 8PECh. 7 - Prob. 9PECh. 7 - Prob. 10PECh. 7 - Prob. 11PECh. 7 - Prob. 12PECh. 7 - Prob. 1PPCh. 7 - Prob. 2PPCh. 7 - Prob. 3PPCh. 7 - Prob. 4PPCh. 7 - Prob. 5PPCh. 7 - Prob. 6PPCh. 7 - Prob. 7PPCh. 7 - Prob. 8PPCh. 7 - Prob. 9PPCh. 7 - Prob. 10PPCh. 7 - Prob. 11PPCh. 7 - Prob. 12PPCh. 7 - Prob. 13PP
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