Debian 又一个",；无法找到或加载主类包“；Java错误

我从这个git存储库中获得了一堆Java源代码：

我将所有内容提取到

~/Java

。提取后，

.java

文件现在位于

~/java/algs4 master/src/main/java/edu/princeton/cs/algs4

中。然后，我将

cd

'd放入所述目录，并按照源代码内部的说明编译

BinarySearch.java

类：

javac In.java StdIn.java Out.java StdOut.java BinarySearch.java

，该类完成时没有错误，并生成了5个java

.class

文件

但是，运行

java edu.princeton.cs.algs4.BinarySearch

总是失败，出现

错误：无法找到或加载主类edu.princeton.cs.algs4.BinarySearch

。我相当肯定我的

$CLASSPATH

是正确的：

/home/larsend/Java/algs4 master/src/main/Java/edu/princeton/cs/algs4

我的系统使用OpenJDK 8 headless进行Debian测试

我应该如何运行编译的类文件

这是有问题的Java源代码，以防需要：

/******************************************************************************
 *  Compilation:  javac BinarySearch.java
 *  Execution:    java BinarySearch whitelist.txt < input.txt
 *  Dependencies: In.java StdIn.java StdOut.java
 *  Data files:   http://algs4.cs.princeton.edu/11model/tinyW.txt
 *                http://algs4.cs.princeton.edu/11model/tinyT.txt
 *                http://algs4.cs.princeton.edu/11model/largeW.txt
 *                http://algs4.cs.princeton.edu/11model/largeT.txt
 *
 *  % java BinarySearch tinyW.txt < tinyT.txt
 *  50
 *  99
 *  13
 *
 *  % java BinarySearch largeW.txt < largeT.txt | more
 *  499569
 *  984875
 *  295754
 *  207807
 *  140925
 *  161828
 *  [367,966 total values]
 *  
 ******************************************************************************/

package edu.princeton.cs.algs4;

import java.util.Arrays;

/**
 *  The {@code BinarySearch} class provides a static method for binary
 *  searching for an integer in a sorted array of integers.
 *  <p>
 *  The <em>indexOf</em> operations takes logarithmic time in the worst case.
 *  <p>
 *  For additional documentation, see <a href="http://algs4.cs.princeton.edu/11model">Section 1.1</a> of
 *  <i>Algorithms, 4th Edition</i> by Robert Sedgewick and Kevin Wayne.
 *
 *  @author Robert Sedgewick
 *  @author Kevin Wayne
 */
public class BinarySearch {

    /**
     * This class should not be instantiated.
     */
    private BinarySearch() { }

    /**
     * Returns the index of the specified key in the specified array.
     *
     * @param  a the array of integers, must be sorted in ascending order
     * @param  key the search key
     * @return index of key in array {@code a} if present; {@code -1} otherwise
     */
    public static int indexOf(int[] a, int key) {
        int lo = 0;
        int hi = a.length - 1;
        while (lo <= hi) {
            // Key is in a[lo..hi] or not present.
            int mid = lo + (hi - lo) / 2;
            if      (key < a[mid]) hi = mid - 1;
            else if (key > a[mid]) lo = mid + 1;
            else return mid;
        }
        return -1;
    }

    /**
     * Returns the index of the specified key in the specified array.
     * This function is poorly named because it does not give the <em>rank</em>
     * if the array has duplicate keys or if the key is not in the array.
     *
     * @param  key the search key
     * @param  a the array of integers, must be sorted in ascending order
     * @return index of key in array {@code a} if present; {@code -1} otherwise
     * @deprecated Replaced by {@link #indexOf(int[], int)}.
     */
    @Deprecated
    public static int rank(int key, int[] a) {
        return indexOf(a, key);
    }

    /**
     * Reads in a sequence of integers from the whitelist file, specified as
     * a command-line argument; reads in integers from standard input;
     * prints to standard output those integers that do <em>not</em> appear in the file.
     *
     * @param args the command-line arguments
     */
    public static void main(String[] args) {

        // read the integers from a file
        In in = new In(args[0]);
        int[] whitelist = in.readAllInts();

        // sort the array
        Arrays.sort(whitelist);

        // read integer key from standard input; print if not in whitelist
        while (!StdIn.isEmpty()) {
            int key = StdIn.readInt();
            if (BinarySearch.indexOf(whitelist, key) == -1)
                StdOut.println(key);
        }
    }
}

/******************************************************************************
 *  Copyright 2002-2016, Robert Sedgewick and Kevin Wayne.
 *
 *  This file is part of algs4.jar, which accompanies the textbook
 *
 *      Algorithms, 4th edition by Robert Sedgewick and Kevin Wayne,
 *      Addison-Wesley Professional, 2011, ISBN 0-321-57351-X.
 *      http://algs4.cs.princeton.edu
 *
 *
 *  algs4.jar is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  algs4.jar is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with algs4.jar.  If not, see http://www.gnu.org/licenses.
 ******************************************************************************/

/******************************************************************************
*编译：javac BinarySearch.java
*执行：java二进制搜索白名单.txt

当您运行

java edu.princeton.cs.algs4.BinarySearch

JVM将在

edu.princeton.cs.algs4

包中查找

BinarySearch

类，该类从类路径中的目录开始映射到

edu/princeton/cs/algs4

。因此，您的类路径应该是

/home/larsend/Java/algs4 master/src/main/Java

；这样，当您运行时，JVM将在

/home/larsend/Java/algs4 master/src/main/Java/edu/princeton/cs/algs4

中找到该类

java edu.princeton.cs.algs4.BinarySearch

JVM看起来像f