21 lines
637 B
Java
21 lines
637 B
Java
import java.nio.channels.FileChannel.MapMode;
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import java.nio.MappedByteBuffer;
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import java.io.RandomAccessFile;
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import java.io.IOException;
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import java.io.File;
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public class MMapReadFile {
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public static void main(String[] args) throws IOException {
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MappedByteBuffer buff = getBufferFor(new File(args[0]));
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String results = new String(buff.asCharBuffer());
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}
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public static MappedByteBuffer getBufferFor(File f) throws IOException {
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RandomAccessFile file = new RandomAccessFile(f, "r");
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MappedByteBuffer buffer = file.getChannel().map(MapMode.READ_ONLY, 0, f.length());
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file.close();
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return buffer;
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}
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}
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