Java 随机字生成器,我想限制它从.txt文件读取的字的大小,最多3个字符
//Random word generator,我想限制它从.txt文件读取的单词的大小//最多为3个字符,并且不使用//只返回System.Out.PrintJava 随机字生成器,我想限制它从.txt文件读取的字的大小,最多3个字符,java,Java,//Random word generator,我想限制它从.txt文件读取的单词的大小//最多为3个字符,并且不使用//只返回System.Out.Print public void RandomWordGenerator() { List<String> words = new ArrayList<>(); try (BufferedReader reader = new BufferedReader(new FileReader("dictionar
public void RandomWordGenerator() {
List<String> words = new ArrayList<>();
try (BufferedReader reader = new BufferedReader(new FileReader("dictionary.txt"))) {
String word;
while ((word = reader.readLine()) != null) {
words.add(word);
}
} catch (IOException e) {
System.out.println("Unable to find file");
}
Random random = new Random();
String randomWord = words.get(random.nextInt(words.size()));
System.out.println(randomWord);
public void RandomWordGenerator(){
List words=new ArrayList();
try(BufferedReader=newbufferedreader(newfilereader(“dictionary.txt”)){
字符串字;
while((word=reader.readLine())!=null){
添加(word);
}
}捕获(IOE异常){
System.out.println(“找不到文件”);
}
随机=新随机();
String randomWord=words.get(random.nextInt(words.size());
System.out.println(随机字);
您只需使用字符串的长度字段即可获得其长度
public void RandomWordGenerator() {
List<String> words = new ArrayList<>();
try (BufferedReader reader = new BufferedReader(new FileReader("dictionary.txt"))) {
String word;
while ((word = reader.readLine()) != null) {
words.add(word);
}
} catch (IOException e) {
System.out.println("Unable to find file");
}
Random random = new Random();
String randomWord = words.get(random.nextInt(words.size()));
System.out.println(randomWord);
String word;
while ((word = reader.readLine()) != null) {
if (word.trim().length <= MAX_LENGTH) {
words.add(word);
}
}
字符串字;
while((word=reader.readLine())!=null){
如果(word.trim().length)是您面临的问题。请务必说明您得到了什么以及您期望得到什么。List lines=Files.lines(Path.of(“myFile.txt”))).filter(line->line.length更喜欢使用ThreadLocalRandom.current()
而不是new Random()
,它速度更快,而且有更多的方法(max
)我想他也愿意接受长度较短的单词,例如1
或2
。因此您可能希望将条件更改为是,谢谢,我已更新了答案