Check that file exists: Difference between revisions
Content added Content deleted
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[[Category:Java]] |
[[Category:Java]] |
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public class |
public class FileExistsTest { |
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public static boolean |
public static boolean isFileExists(String filename) { |
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boolean exists = new File(filename).exists(); |
boolean exists = new File(filename).exists(); |
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return exists; |
return exists; |
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public static void test(String type, String filename) { |
public static void test(String type, String filename) { |
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System.out.println("The following " + type + " called " + filename + |
System.out.println("The following " + type + " called " + filename + |
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( |
(isFileExists(filename) ? " exists." : " not exists.") |
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); |
); |
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} |
} |
Revision as of 14:52, 7 April 2007
Check that file exists
You are encouraged to solve this task according to the task description, using any language you may know.
You are encouraged to solve this task according to the task description, using any language you may know.
In this task, the job is to verify that a file called "input.txt" exists or not and that the directory "docs" exists or not. Assuming current directory or fullpath. Either "/input.txt" or "\input.txt" for the former and "/docs/" or "\docs\" for the second test.
Java
public class FileExistsTest { public static boolean isFileExists(String filename) { boolean exists = new File(filename).exists(); return exists; } public static void test(String type, String filename) { System.out.println("The following " + type + " called " + filename + (isFileExists(filename) ? " exists." : " not exists.") ); } public static void main(String args[]) { test("file", "input.txt"); test("file", File.seperator + "input.txt"); test("directory", "docs"); test("directory", File.seperator + "docs" + File.seperator); } }