Question

我创建了一个加密程序和一个解密程序，但是有完全独立的文件。我也使用了不同的变量名，有没有办法将它们组合起来而不必改变变量的所有名称等等？

加密代码：

import java.util.*;

public class Cipher //This class will encrpyt the program
{

  public static char cipher (int j){ //this mehtod generates the random letter
    char[] cipher1 = {'a','b','c','d','e','f','g'}; //characters for char array
    j = (int) (Math.random() * cipher1.length);//choose a random element from the array
    return cipher1[j]; //this will return the letter
  } //end of cipher method

  public static void main (String[] args){ //main method

    System.out.print("Please type a sentence to be encrypted\n");//asks user for their word to be encrypted
    Scanner inputScanner = new Scanner(System.in); //imports scanner reader
    String userinput = inputScanner.next(); //assigns the word entered by user to varible userinput

    userinput = userinput.toUpperCase(); //userinput in transferred to upper case letters
    int yu = userinput.length(); //yu finds the length of charceters in userinput
    char[] charArray = userinput.toCharArray(); //sends userinput to charArray

    int w=1; //used for try catch block
    System.out.println("please enter pattern"); //prompt for pattern
    String pattern = inputScanner.next(); //pattern will decide how many characters will be input in the encrypted code
    int pattern2 = Integer.parseInt(pattern); //changes the string value to integer value

    do{ 
      try{ //try block to catch if user enters letters or decimal numbers
        w=2;

        if(pattern2<0){
          System.out.println("please enter a number above 0"); //prompt if user enters somthing below zero
          w=1;
        }
      }catch (NumberFormatException f){
        System.out.println("PLEASE ENTER A NUMBER!"); //prompt if user enters something user than a number
      }

    }while (w==1); //end of do and try catch block

    System.out.print("your encrypted code is: "); //prompt to give user encrypted code

    for(int i = 0; i < yu; i++){
      System.out.print(charArray[i]);

      for(int q = 0; q < pattern2; q++){
        System.out.print( cipher(1));
      } //end of for loop
    } //end of for loop

  } //end of main method
} //cipher class

解密代码：

   import java.util.*;

public class unscrambler //This class will encrpyt the program
{
 public static void main (String [] args){
   int cip= 0;
   String user ="";




   System.out.println("Please enter the code to unscramble"); 
   Scanner inputScanner = new Scanner(System.in); //imports scanner reader
    String userinput = inputScanner.next();
    char[] charArray = userinput.toCharArray(); //sends userinput to charArray
    int j=charArray.length;

    Character [] array = new Character[j];

    for(int w=0; w<j; w++){
      array[w] = charArray[w];
    }

    int a=1;
               System.out.println("Please enter the number cipher pattern (an integer)");
    do{
      try{

         user = inputScanner.next();
        cip = Integer.parseInt(user);
        a=2;
        System.out.println("your code is ");

 for(int w =0; w<j;){
   System.out.println(charArray[j]);

   w+=cip;
 }
          if(cip<=0){
          System.out.println("please enter number greater than zero");
a=1;
}
}catch(NumberFormatException f){
  System.out.println("please enter a proper number");
}
}while(a==1);


 }
}

Answer 1

据我所知，您可以使用以下步骤。

在第二个类中重命名main，并将代码内容作为单独的方法移动到第一个类中。
在第一堂课中重命名main。
创建一个新的main，它将使用命令行参数来消除它们之间的歧义。

更具体地说，您的代码现在将如下所示：

public class Cipher {
 public static char cipher (int j){
... 
}
// Old main1
public static void encrypt() {
...
}
// Old main2
public static void decrypt() {
...
}
// One possible way to disambiguate, there are many others.
public static void main(String[] args) {
   if (args[0].equals("encrypt") encrypt();
   else decrypt();
}
}

请注意，我从您的两个旧电源中删除了String[] args，因为您似乎没有使用它们。

Answer 2

将它们保存为单独的文件。 1）在第一类重命名加密 2）重命名第二类主要解密 3）使用main方法创建一个新类。 a）在main方法中创建加密和解密对象 b）每当你需要Cipher.encypt（）和descrambler.decrypt（）

时调用它们

加密和解密这两个类保持独立是一个很好的设计，您可以在以后重复使用而无需任何修改。

如何将我的两个程序合二为一？

2 个答案: