Examples of java.io.DataInputStream.skipBytes()

java.io.DataInputStream.skipBytes()
See the general contract of the skipBytes method of DataInput.
Bytes for this operation are read from the contained input stream. @param n the number of bytes to be skipped. @return the actual number of bytes skipped. @exception IOException if the contained input stream does not supportseek, or the stream has been closed and the contained input stream does not support reading after close, or another I/O error occurs.

  }
  
  private static double[][] readDoubleByColumn(String file, int first, int skipBytes,int rowNumber, int columnNumber) throws IOException{
    DataInputStream in = new DataInputStream(new FileInputStream(file));
    double[][] data = new double[rowNumber][columnNumber];
    in.skipBytes(first);
    data[0][0] = in.readDouble();
    for(int rowIndex=1; rowIndex<rowNumber; ++rowIndex){
      in.skipBytes(skipBytes);
      data[rowIndex][0] = in.readDouble();
    }

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    DataInputStream in = new DataInputStream(new FileInputStream(file));
    double[][] data = new double[rowNumber][columnNumber];
    in.skipBytes(first);
    data[0][0] = in.readDouble();
    for(int rowIndex=1; rowIndex<rowNumber; ++rowIndex){
      in.skipBytes(skipBytes);
      data[rowIndex][0] = in.readDouble();
    }
    for(int colIndex=1; colIndex<columnNumber; ++colIndex){
      for(int rowIndex=0; rowIndex<rowNumber; ++rowIndex){
        in.skipBytes(skipBytes);

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      in.skipBytes(skipBytes);
      data[rowIndex][0] = in.readDouble();
    }
    for(int colIndex=1; colIndex<columnNumber; ++colIndex){
      for(int rowIndex=0; rowIndex<rowNumber; ++rowIndex){
        in.skipBytes(skipBytes);
        data[rowIndex][colIndex] = in.readDouble();
      }
    }
    in.close();
    return data;

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  }
  
  private static float[][] readFloatByRow(String file, int first, int skipBytes,int rowNumber, int columnNumber) throws IOException{
    DataInputStream in = new DataInputStream(new FileInputStream(file));
    float[][] data = new float[rowNumber][columnNumber];
    in.skipBytes(first);
    data[0][0] = in.readFloat();
    for(int colIndex=1; colIndex<columnNumber; ++colIndex){
      in.skipBytes(skipBytes);
      data[0][colIndex] = in.readFloat();
    }

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    DataInputStream in = new DataInputStream(new FileInputStream(file));
    float[][] data = new float[rowNumber][columnNumber];
    in.skipBytes(first);
    data[0][0] = in.readFloat();
    for(int colIndex=1; colIndex<columnNumber; ++colIndex){
      in.skipBytes(skipBytes);
      data[0][colIndex] = in.readFloat();
    }
    for(int rowIndex=1; rowIndex<rowNumber; ++rowIndex){
      for(int colIndex=0; colIndex<columnNumber; ++colIndex){
        in.skipBytes(skipBytes);

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      in.skipBytes(skipBytes);
      data[0][colIndex] = in.readFloat();
    }
    for(int rowIndex=1; rowIndex<rowNumber; ++rowIndex){
      for(int colIndex=0; colIndex<columnNumber; ++colIndex){
        in.skipBytes(skipBytes);
        data[rowIndex][colIndex] = in.readFloat();
      }
    }
    in.close();
    return data;

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  }
  
  private static float[][] readFloatByColumn(String file, int first, int skipBytes,int rowNumber, int columnNumber) throws IOException{
    DataInputStream in = new DataInputStream(new FileInputStream(file));
    float[][] data = new float[rowNumber][columnNumber];
    in.skipBytes(first);
    data[0][0] = in.readFloat();
    for(int rowIndex=1; rowIndex<rowNumber; ++rowIndex){
      in.skipBytes(skipBytes);
      data[rowIndex][0] = in.readFloat();
    }

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    DataInputStream in = new DataInputStream(new FileInputStream(file));
    float[][] data = new float[rowNumber][columnNumber];
    in.skipBytes(first);
    data[0][0] = in.readFloat();
    for(int rowIndex=1; rowIndex<rowNumber; ++rowIndex){
      in.skipBytes(skipBytes);
      data[rowIndex][0] = in.readFloat();
    }
    for(int colIndex=1; colIndex<columnNumber; ++colIndex){
      for(int rowIndex=0; rowIndex<rowNumber; ++rowIndex){
        in.skipBytes(skipBytes);

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      in.skipBytes(skipBytes);
      data[rowIndex][0] = in.readFloat();
    }
    for(int colIndex=1; colIndex<columnNumber; ++colIndex){
      for(int rowIndex=0; rowIndex<rowNumber; ++rowIndex){
        in.skipBytes(skipBytes);
        data[rowIndex][colIndex] = in.readFloat();
      }
    }
    in.close();
    return data;

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  }
  
  private static int[][] readIntByRow(String file, int first, int skipBytes,int rowNumber, int columnNumber) throws IOException{
    DataInputStream in = new DataInputStream(new FileInputStream(file));
    int[][] data = new int[rowNumber][columnNumber];
    in.skipBytes(first);
    data[0][0] = in.readInt();
    for(int colIndex=1; colIndex<columnNumber; ++colIndex){
      in.skipBytes(skipBytes);
      data[0][colIndex] = in.readInt();
    }

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