我正在尝试创建一个程序,生成随机的英语句子(根据一般英语语法规则)。
我的子程序randomSentence()
一直有bug。我错过了什么?还有关于如何简化一切的建议吗?
我收到的错误是:
Exception in thread "main" java.lang.Error: Unresolved compilation problem:
The method print(boolean) in the type PrintStream is not applicable for the arguments (void)
at SentenceGenerator.randomSentence(SentenceGenerator.java:80)
at SentenceGenerator.main(SentenceGenerator.java:86)
代码:
import java.util.ArrayList;
import java.util.Random;
public class SentenceGenerator {
private StringData[] stringData;
// An array containing all of the possible words. This is a nested class.
/**
* An object of this type holds the word that will be randomly chosen and printed
*/
public class StringData {
String[] conjunction = {"and", "or", "but", "because"};
String[] proper_noun = {"red", "Jane", "Richard Nixon", "Miss America"};
String[] common_noun = {"man", "woman", "fish", "elephant", "unicorn"};
String[] determiner = {"a", "the", "every", "some"};
String[] adjective = {"big", "tiny", "pretty", "bald"};
String[] intransitive_verb = {"runs", "jumps", "talks", "sleeps"};
String[] transitive_verb = {"loves", "hates", "sees", "knows", "looks for", "finds"};
//find out how many words there are in each list
int conjunctionLength = conjunction.length;
int proper_nounLength = proper_noun.length;
int common_nounLength = common_noun.length;
int determinerLength = determiner.length;
int adjectiveLength = adjective.length;
int intransitive_verbLength = intransitive_verb.length;
int transitive_verbLength = transitive_verb.length;
//Generate random numbers
int rand1 = (int) (Math.random()*conjunctionLength);
int rand2 = (int) (Math.random()*proper_nounLength);
int rand3 = (int) (Math.random()*common_nounLength);
int rand4 = (int) (Math.random()*determinerLength);
int rand5 = (int) (Math.random()*adjectiveLength);
int rand6 = (int) (Math.random()*intransitive_verbLength);
int rand7 = (int) (Math.random()*transitive_verbLength);
String word1 = conjunction[rand1];
String word2 = proper_noun[rand2];
String word3 = common_noun[rand3];
String word4 = determiner[rand4];
String word5 = adjective[rand5];
String word6 = intransitive_verb[rand6];
String word7 = transitive_verb[rand7];
}
static void Sentence() {
String sentence() = SimpleSentence();
}
/**
* subroutine that defines how SimpleSentence is put together, nesting NounPhrase and VerbPhrase subroutines
*/
public static String SimpleSentence() {
String simple_sentence = NounPhrase() + VerbPhrase();
return "";
}
/**
* subroutine that defines the nested variable NounPhrase
*/
public static String NounPhrase() {
String noun_phrase = proper_noun[word2], determiner[word4], common_noun[word3];
return "";
}
/**
* subroutine that defines the nested variable VerbPhrase
*/
static void VerbPhrase() {
String verb_phrase = intransitive_verb[word6], transitive_verb[word7], NounPhrase();
}
/**
* Final subroutine that prints out the random sentence
*/
public static void randomSentence() {
System.out.print(randomSentence());
}
public static void main(String[] args) {
while (true) {
randomSentence();
System.out.println(".\n\n");
try {
Thread.sleep(3000);
}
catch (InterruptedException e) {}
}
}
}
2条答案
按热度按时间3pvhb19x1#
这是最明显的错误:
递归调用该方法。
此外,程序充满了概念性错误,您需要更好地学习OO编程范式。
ws51t4hk2#
好的。第期:
System.out.print(randomSentence());
randomSentence()
返回void
,所以基本上print()
没有什么要打印的。Next--〉即使您碰巧修复了此问题。您正在 * 递归 * 调用
randomSentence()
,您将得到一个StackOverflowError
。请检查您的设计/代码。