Big Java Late Objects
2nd Edition
ISBN: 9781119330455
Author: Horstmann
Publisher: WILEY
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Expert Solution & Answer
Chapter 7, Problem 14RE
Explanation of Solution
Explanation:
- The “try”-with-resources statement ensures that a resource is closed when the statement ends normally or abruptly.
- To use this statement, the programmer needs to declare the needed resources within the parenthesis, and the built resource will be closed automatically at the end of the block.
- When closing resources, the programmer must use “try”-with-resources instructions.
- Consider the following sequence of statements:
//Create an instance variable
PrintWriter pout = new PrintWriter(file_name);
//Call the method
writeData(pout);
//Call close() method
pout...
Explanation of Solution
Type of exception being caught:
- An exception is a problem that comes during the program execution.
- An exception caught by a surrounding “catch” clause depends on the exception type being caught by the “catch” clause...
Explanation of Solution
A sample program:
- When the programmer uses a resource, which should be closed, like a “PrintWriter”, the programmer requires to be careful in the presence of exceptions.
- Consider the following sequence of statements:
//Create an instance variable
PrintWriter pout = new PrintWriter(file_name);
//Call the method
writeData(pout);
//Call close() method
pout.close();
- Let’s assume that one of the methods prior to the last line throws an exception.
- Then the invocation to the method “close()” is never executed.
- The data that was written to the stream may never end up in the file.
- Therefore, the programmer uses the try-with-resources statement...
Expert Solution & Answer
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Check out a sample textbook solutionChapter 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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