31 lines
862 B
Java
31 lines
862 B
Java
// newio/TransferTo.java
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// (c)2017 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://OnJava8.com for more book information.
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// Using transferTo() between channels
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// {java TransferTo TransferTo.java TransferTo.txt}
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import java.nio.channels.*;
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import java.io.*;
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public class TransferTo {
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public static void main(String[] args) {
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if(args.length != 2) {
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System.out.println(
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"arguments: sourcefile destfile");
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System.exit(1);
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}
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try(
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FileChannel in = new FileInputStream(
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args[0]).getChannel();
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FileChannel out = new FileOutputStream(
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args[1]).getChannel()
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) {
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in.transferTo(0, in.size(), out);
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// Or:
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// out.transferFrom(in, 0, in.size());
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} catch(IOException e) {
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throw new RuntimeException(e);
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}
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}
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}
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