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class A {
         public String show(D obj){
                return ("A and D");
  ......

Éú²úÕßÏû·ÑÕßÎÊÌâÖ®JavaÏß³ÌʵÏÖ

Ô­ÌùÄÚÈÝÇë¼û: http://topic.csdn.net/u/20100116/17/6a204504-9e70-435f-be55-f0630ed12fdf.html?seed=942806558&r=62778073#r_62778073
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package selfimpr.producerCustomer;
/**
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* @author selfimpr
* @blog http://blog.csdn.net/lgg201
* @email lgg860911@yahoo.com.cn
......

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public class DES {
    // ÉùÃ÷³£Á¿×Ö½ÚÊý×é
    private static final int[] IP = {
            58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44, 36, 28, 20, 12, 4, 62, 54,
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