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POResize an image file
 

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  1. POResize an image file
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    <p>In Java I am copying an image file from one location to another . The program is executing properly, but I want the destination file size to be different from the source file size. Is there any other way to resize the file at the new location? I am using the following code:</p> <pre><code>public class NewJFrame extends javax.swing.JFrame { public NewJFrame() { initComponents(); } public static void copyFile(File sourceFile, File destFile) throws IOException { if (!destFile.exists()) { destFile.createNewFile(); } FileChannel source = null; FileChannel destination = null; try { source = new FileInputStream(sourceFile).getChannel(); destination = new FileOutputStream(destFile).getChannel(); // previous code: destination.transferFrom(source, 0, source.size()); // to avoid infinite loops, should be: long count = 0; long size = source.size(); while ((count += destination.transferFrom(source, count, size - count)) &lt; size) ; } finally { if (source != null) { source.close(); } if (destination != null) { destination.close(); } } } private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { try { File sourceFile = new File( "d:/adesh/golden_temple_amritsar_india-normal.jpg"); File destFile = new File( "d:/adesh2/golden_temple_amritsar_india-normal.jpg"); copyFile(sourceFile, destFile); } catch (Exception ex) { } } /** * @param args the command line arguments */ public static void main(String args[]) { java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new NewJFrame().setVisible(true); } }); } private javax.swing.JButton jButton1; private javax.swing.JButton jButton2; } </code></pre>
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    1. CO*"I want the destination file size must be different from source file"* Why? Wouldn't that suggest that the copy went wrong?
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    2. COAre you confusing resizing an image with resizing a file? I assume you are trying to resize an ***image***, if so, read here: http://stackoverflow.com/questions/4016805/how-do-i-resize-an-image-with-java
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