Java 入門指南 V2.00 - 單元 14 範例

Encrypt02.java

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public class Encrypt02 {    // 密碼表字元陣列    private char[] code = new char[26];      // 建構子    public Encrypt02() {       setCode();    }      // setter    public void setCode() {       int a = 3;       int b = 5;         int x, y, m, i;       char c = 'a';       for (i = 0; i < 26; i++) {          x = c;          y = x * a + b;          m = y % 26;          code[i] = (char) (m + 97);          c++;       }    }      // getter    public char[] getCode() {       return code;    }      // 編碼的方法    public String toEncode(String s) {       return s;    }      // 解碼的方法    public String toDecode(String s) {       return s;    }      // 測試的 main()    public static void main(String[] args) {       Encrypt02 e = new Encrypt02();       System.out.println(e.getCode());       String s = "There is no spoon";       System.out.println(s);       String s1 = e.toEncode(s);       System.out.println(s1);       String s2 = e.toDecode(s1);       System.out.println(s2);    } }    /* 檔名： Encrypt02.java    作者： Kaiching Chang    時間： September, 2014  */

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