易截截图软件、单文件、免安装、纯绿色、仅160KB

DES加密算法源码(java版)

public class DES {
    // 声明常量字节数组
    private static final int[] IP = {
            58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44, 36, 28, 20, 12, 4, 62, 54,
            46, 38, 30, 22, 14, 6, 64, 56, 48, 40, 32, 24, 16, 8, 57, 49, 41, 33,
            25, 17, 9, 1, 59, 51, 43, 35, 27, 19, 11, 3, 61, 53, 45, 37, 29, 21,
            13, 5, 63, 55, 47, 39, 31, 23, 15, 7
        }; // 64
    private static final int[] IP_1 = {
            40, 8, 48, 16, 56, 24, 64, 32, 39, 7, 47, 15, 55, 23, 63, 31, 38, 6,
            46, 14, 54, 22, 62, 30, 37, 5, 45, 13, 53, 21, 61, 29, 36, 4, 44, 12,
            52, 20, 60, 28, 35, 3, 43, 11, 51, 19, 59, 27, 34, 2, 42, 10, 50, 18,
            58, 26, 33, 1, 41, 9, 49, 17, 57, 25
        }; // 64
    private static final int[] PC_1 = {
            57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59, 51,
            43, 35, 27, 19, 11, 3, 60, 52, 44, 36, 63, 55, 47, 39, 31, 23, 15, 7,
            62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21, 13, 5, 28, 20,
            12, 4
        }; // 56
    private static final int[] PC_2 = {
      


相关文档:

Java数据库连接池类源码

来自:http://www.cnblogs.com/shiyangxt/archive/2008/07/30/1256813.html
环境:MyEclipse
 
数据库:mysql
 
首先新建Java项目,然后新建两个类,一个数据库连接池类,一个测试类。
 
分别命名ConnectionPool,ConnectionPoolTest。
 
然后新建一个配置文件,命名:dbpool.properties。
&n ......

java 使用相对路径读取文件

http://www.blogjava.net/flysky19/articles/93492.html
1.java project环境,使用java.io用相对路径读取文件的例子:
 *目录结构:
  DecisionTree
            |___src
             ......

生产者消费者问题之Java线程实现

原贴内容请见: http://topic.csdn.net/u/20100116/17/6a204504-9e70-435f-be55-f0630ed12fdf.html?seed=942806558&r=62778073#r_62778073
请大牛指正.
产品类:
package selfimpr.producerCustomer;
/**
* 产品
* @author selfimpr
* @blog http://blog.csdn.net/lgg201
* @email lgg860911@yahoo.com.cn
......
© 2009 ej38.com All Rights Reserved. 关于E健网联系我们 | 站点地图 | 赣ICP备09004571号