sbox.java

200多个自己编的java程序,大家可以学一下.

/*
 * sbox.java
 *
 * Created on 2004年9月26日, 下午4:38
 */

/**
 *
 * @author  litertiger
 */
public class sbox {
    int [] s={
        14, 4,13, 1, 2,15,11, 8, 3,10, 6,12, 5, 9, 0, 7,
         0,15, 7, 4,14, 2,13, 1,10, 6,12,11, 9, 5, 3, 8,
         4, 1,14, 8,13, 6, 2,11,15,12, 9, 7, 3,10, 5, 0,
        15,12, 8, 2, 4, 9, 1, 7, 5,11, 3,14,10, 0, 6, 3
    
    };
int in[]={1,0,1,0,1,1};
int r;


    
    /** Creates a new instance of sbox */
    public sbox() {
        
         int j=(in[0]*2+in[5])*16+in[1]*8+in[2]*4+in[3]*2+in[4];
         r=s[j];
         System.out.print(r);
        
        
    }
public     static void main(String args[]){
sbox s=new sbox();
}
}