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import java.io.FileInputStream;
import java.io.IOException;
import java.nio.MappedByteBuffer;
import java.nio.channels.FileChannel;
public class MainClass {
public static void main(String args[]) {
FileInputStream fileInputStream;
FileChannel fileChannel;
long fileSize;
MappedByteBuffer mBuf;
try {
fileInputStream = new FileInputStream("test.txt");
fileChannel = fileInputStream.getChannel();
fileSize = fileChannel.size();
mBuf = fileChannel.map(FileChannel.MapMode.READ_ONLY, 0, fileSize);
for (int i = 0; i < fileSize; i++)
System.out.print((char) mBuf.get());
fileChannel.close();
fileInputStream.close();
} catch (IOException exc) {
System.out.println(exc);
System.exit(1);
}
}
}
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