java 加密解密演算法

public class cryptogram ;

//金鑰
private static final int key=5;
/*** @param args
*/public static void main(string args) ;
char encryptcode=cryptogram.encrypt(in);
system.out.print("encryptcode-----");
for(int i=0;isystem.out.print(encryptcode[i]);
system.out.println();
char decryptcode=cryptogram.decrypt(encryptcode);
system.out.print("decryptcode-----"); 
for(int i=0;isystem.out.print(decryptcode[i]); } 
//加密演算法
public static char encrypt(char data)
else
} return tmp; } 
private static int getindex(char data) 
//解密演算法
public static char decrypt(char data)
else
} return tmp; } 
}

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