使用Java生成所有单词 [英] Generate all words using Java
本文介绍了使用Java生成所有单词的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想知道如何使用指定字符和长度的java生成所有单词
I want to know how to generate all words using java from specified characters and length
String first[]={"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"};
String second[]={"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"};
String ch ="";
String total[];
for(int i = 0;i<26;i++) {
for(int j = 0;j<26;j++) {
ch+=first[i]+first[j];
System.out.println(ch);
}
}
我只得到这个程序的576字,但是26!单词是4.03291461×10 ^ 26
I get only 576 words only by this program, but the 26! words is 4.03291461 × 10^26
如何用java编写程序?
How to write the program in java?
推荐答案
这是我的解决方案。这有点快,所以不要太过于优化。
Here's my solution. It's kind of quick, so don't be too hard on the optimization.
public static void printWords(int length) {
if (length < 1)
throw new IllegalArgumentException();
printWordsRec("", length);
}
private static void printWordsRec(String base, int length) {
for (char c = 'a'; c <= 'z'; c++) {
if (length == 1) {
System.out.println(base + c);
}
else {
printWordsRec(base + c, length - 1);
}
}
}
这篇关于使用Java生成所有单词的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文