从两个用户给定值生成字母 [英] generating letters from two user given values

问题描述

我一直在尝试编写一种在两个给定的char值之间生成随机字母的方法.到目前为止，我相信最好的方法是将char字符转换为ascii值，然后将其与用户输入进行比较，并在这两个值之间进行for循环.我的问题是我不知道在转换值之后如何比较这些值，到目前为止，这是我的代码:

  public   void  add( char  fromChar， char  toChar){
        随机a = 新 Random();
       字符 []字符= {'  a'，'  b'，'  c'，'  d'，'  e'，' ' ' '  i'，'  j'， '  k'，'  l'，'  m'，'  n'，'  o'，'  p'，'  q'，'  r'， s'， t'， u'，'  v'，'  w' ，'  x'，'  y'，'  z' };
        int 开始= 65;
        for ( int  i = 0; i< characters.length;>字符[i] =开头；
         开始++;
         
         
       }
        for ( int  i = fromChar; i< tochar;> System.out.println(a.nextInt (fromChar，toChar);
       }
        
    } 

[edit]删除了粗体的虚假字符，添加了代码块-OriginalGriff [/edit]

解决方案

您需要根据任意值设置种子，然后调用具有限制范围的方法.像这样的东西:

  int  range = toChar-fromChar;
 int  seed = fromChar * toChar;
随机rr = 新随机(种子)；
 for ( int  i =  0 ; i <  10 ; ++ i){
     char  randomChar =( char )(fromChar + rr.nextInt(range));
    System.out.println("  + randomChar);
} 

i have been trying to write a method that generates random letters between two given char values. So far i believe the best way is to convert the char characters to ascii values then compare them with the user input and make a for loop between those 2 values. My problem is i dont know how to compare the values after they have been converted here is my code so far:

public void add (char fromChar, char toChar){
        Random a = new Random();
       char[] characters = { 'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'};
       int start =65;
       for(int i =0; i<characters.length;>         characters[i] = start;
         start++;
         
         
       }     
       for(int i = fromChar; i<tochar;>           System.out.println(a.nextInt(fromChar,toChar);
       }
        
    }

[edit]Spurious bold removed, Code block added - OriginalGriff[/edit]

解决方案

You need to set a seed based on some arbitrary value, then call the nextInt() method with a limiting range. Something like:

int range = toChar - fromChar;
int seed = fromChar * toChar;
Random rr = new Random(seed);
for (int i = 0; i < 10; ++i) {
    char randomChar = (char)(fromChar + rr.nextInt(range));
    System.out.println("Next character: " + randomChar);
}

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