Check that file exists: Difference between revisions
Content added Content deleted
(New page: {{task}} 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 "/inpu...) |
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public static void main(String args[]) { |
public static void main(String args[]) { |
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test("file", "input.txt"); |
test("file", "input.txt"); |
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test("file", File.seperator + "input.txt"); |
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test("file", "/input.txt"); |
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else |
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test("file", "c:\\input.txt"); |
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test("directory", "docs"); |
test("directory", "docs"); |
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test("directory", File.seperator + "docs" + File.seperator); |
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test("directory", "/docs/"); |
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else |
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test("directory", "c:\\docs\\"); |
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} |
} |
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} |
} |
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Revision as of 14:43, 7 April 2007
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 "c:\\input.txt" for the former and "/docs/" or "c:\\docs\" for the second test.
Java
public class FileTest {
public static boolean isFileExist(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 +
(isFileExist(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);
}
}