[英]Trying to Generate a string that matches a Regular Expression in Order (From 0 to N size of the String and from 1 to 255 ASCII caracters) in JAVA
The code is taking a value option chooses beetween the 2 Lists that are going to get filled by generating these compatible Strings to the Regular Expressions, there are 2 regular Expressions. 代码采用值选项,通过在正则表达式中生成这些兼容的字符串来填充要填充的2个列表之间的选项,其中有2个正则表达式。
Those regular expressions are going to be compared later. 这些正则表达式将在以后进行比较。 The "ascii" variable is a String with every single caracter in the ASCCI code. “ ascii”变量是ASCCI代码中每个字符都有一个字符串。
Right now the code seem to not end when I start it, I dont really know where exactly is my mistake here. 现在,当我启动代码时,代码似乎还没有结束,我真的不知道我的错误在哪里。
static public void ASCIIString(int option){
String res="";
int n=0;
cicleG: while(true){
n++;
int x=n-1;
int []aux = new int [n];
for(int i=0;i<n;i++){
aux[i]=0;
}
cicle: while(aux[0]<ascii.length()){
for(int i=0;i<n;i++){
res+=(ascii.charAt(aux[i])+"");
}
aux[x]++;
while(aux[x]==ascii.length() && x>0){
aux[x]=0;
aux[--x]++;
}
x=n-1;
for (int i = 0; i < Lista1.size(); i++) {
if(option==1)
if(res.equals(Lista1.get(i))){
continue cicle;
}
else
if(res.equals(Lista2.get(i))){
continue cicle;
}
}
if(option==1)
if(res.matches(expression1)){
Lista1.add(res);
break cicleG;
}
else
if(res.matches(expression2)){
Lista2.add(res);
break cicleG;
}
}
}
}
And the code for inicialization is this one: 初始化的代码是这样的:
static ArrayList<String> Lista1,Lista2;
static String ascii="";
static String expression1="",expression2="";
for (int i = 1; i <= 255; i++) {
ascii+=(char)i;
}
Lista1= new ArrayList();
Lista2= new ArrayList();
expression1=lenguaje1.getText();
expression2=lenguaje2.getText();
Guessing : one fine reason for your second loop to never stop could be 猜测 :您的第二个循环永不停止的一个好原因可能是
while(aux[0]<ascii.length()){
That doesn't sound to convincing ... 这听起来并不令人信服...
But honestly, the real answer here ... your problem is of a different nature. 但老实说,这是真正的答案……您的问题的性质不同。 The real problem here: you created over complicated and super hard to read/understand code! 真正的问题在这里:您创建了复杂而又难以阅读/理解的代码! You have multi level nested loops, with conditions and goto jumps . 您具有条件和goto jumps的多层嵌套循环。 Don't get me wrong, but you created a huge mess here! 别误会我,但是您在这里造成了巨大的混乱 ! It is absolutely no surprise that you don't understand what this code is doing; 不理解该代码在做什么绝对不足为奇。 and as a consequence, it is also no surprise that this code is not doing what you want it to do. 因此,此代码没有按照您的期望去做也就不足为奇了。
Thus, the real answer here is: throw your code away . 因此,这里的真正答案是: 丢弃代码 。 Now. 现在。
Then write down a clear specification of your requirements (your introducing text is not at all clear); 然后写下您的要求的清晰说明(您的介绍文字根本不清楚); and then start implementing those requirements. 然后开始实施这些要求。 But instead of just writing down code, you should really focus on writing code that is easy to read and understand . 但是,您不仅应该编写代码,还应该真正专注于编写易于阅读和理解的代码。 You see, even if "we" figure the problem with your current code, and you fix it - when you come back in 2 or 4 weeks to enhance that code - you will be lost. 您会看到,即使“我们”发现了您当前代码的问题,并且您已解决该问题-当您在2或4周内回来改进该代码时-您也会迷失方向。
Long story short: the code that you provided took maybe 1 hour to write. 长话短说:您提供的代码可能花费了1个小时来编写。 It will take easily 2,3 hours to "re-understand" what it is doing in a few weeks from now. 从现在开始的几周内,将需要2,3个小时来轻松地“重新了解”它在做什么。
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