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    <p>The problem lies in the way you are creating the <code>File</code> <code>source</code>.</p> <p>There is a bug in it that is generating a File with the wrong directory.</p> <p>So when you call <code>.exists</code> it simply doesn't, as you are referring to the wrong file path</p> <blockquote> <p><strong>public String substring (int start, int end)</strong></p> <p>Since: API Level 1 Returns a string containing a subsequence of characters from this string. The returned string shares this string's backing array.</p> <p>Parameters start the offset of the first character. end the offset one past the last character. Returns a new string containing the characters from start to end - 1</p> </blockquote> <p>You have misused <code>substring</code>. It get the substring from start to end -1. You have -1 yourself, so infact you have actually caused it to -2 from the folder directory.</p> <p>If you remove the extra -1 and decrease start of next substring by 1, it should work.</p> <pre><code>int end = from.toString().lastIndexOf("/") ; String str1 = from.toString().substring(0, end); String str2 = from.toString().substring(end+1, from.length()); </code></pre> <p><strong>EDIT:</strong></p> <p>An improved way would be to make use of the <code>File</code> methods</p> <pre><code>File source = new File(from); //creates file from full path name String fileName = source.getName(); // get file name File destination= new File(to, fileName ); // create destination file with name and dir. </code></pre>
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    1. USDoomsknight
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    1. COThank you very much :)
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      1. USHayk Nahapetyan
    2. COGlad I could help. Check out my edit to see an improved way of doing it. If you havent already :)
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    3. COafter your answer I tried , and it worked , and then saw that you have edit answer :) , now everything works with you help :)
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