home | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Java example source code file (MnistLabelFile.java)

This example Java source code file (MnistLabelFile.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

ioexception, mnistdbfile, mnistlabelfile, override, string

The MnistLabelFile.java Java example source code

/*
 *
 *  * Copyright 2015 Skymind,Inc.
 *  *
 *  *    Licensed under the Apache License, Version 2.0 (the "License");
 *  *    you may not use this file except in compliance with the License.
 *  *    You may obtain a copy of the License at
 *  *
 *  *        http://www.apache.org/licenses/LICENSE-2.0
 *  *
 *  *    Unless required by applicable law or agreed to in writing, software
 *  *    distributed under the License is distributed on an "AS IS" BASIS,
 *  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  *    See the License for the specific language governing permissions and
 *  *    limitations under the License.
 *
 */

package org.deeplearning4j.datasets.mnist;


import java.io.FileNotFoundException;
import java.io.IOException;


/**
 * 
 * MNIST database label file.
 * 
 */
public class MnistLabelFile extends MnistDbFile {

    /**
     * Creates new MNIST database label file ready for reading.
     * 
     * @param name
     *            the system-dependent filename
     * @param mode
     *            the access mode
     * @throws IOException
     * @throws FileNotFoundException
     */
    public MnistLabelFile(String name, String mode) throws IOException {
        super(name, mode);
    }

    /**
     * Reads the integer at the current position.
     * 
     * @return integer representing the label
     * @throws IOException
     */
    public int readLabel() throws IOException {
        return readUnsignedByte();
    }

    /** Read the specified number of labels from the current position*/
    public int[] readLabels(int num) throws IOException {
        int[] out = new int[num];
        for( int i=0; i<num; i++ ) out[i] = readLabel();
        return out;
    }

    @Override
    protected int getMagicNumber() {
        return 2049;
    }
}

Other Java examples (source code examples)

Here is a short list of links related to this Java MnistLabelFile.java source code file:



my book on functional programming

 

new blog posts

 

Copyright 1998-2019 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.