-2
我是新来的Java,并试图循环通过使用我的主要方法中的增强for循环创建的HashSet。我收到了“void”类型的错误,这里不允许这样做“,我不太清楚如何解决这个问题。我相信这对大多数人来说可能看起来像是一个简单的错误,但我非常喜欢初学者,为了这个错误是什么意思,以及如何解决这个问题,将不胜感激下面是代码:尝试循环HashSet时不允许在这里使用void类型?
主类
package lab5;
public class Main{
public static void main (String[] args) {
WordGroup firstWordGroup = new WordGroup("You-can-discover-more-about-a-person-in-an-hour-of-plau-tban-in-a-year-of-conversation");
WordGroup secondWordGroup = new WordGroup ("When-you-play-play-hard-when-you-work-dont-play-at-all");
System.out.println("*****First Array list*****");
String[] firstWordArray = firstWordGroup.getWordArray();
for(String word : firstWordArray) {
System.out.println(word);
}
System.out.println("*****Second Array list*****");
String[] secondWordArray = secondWordGroup.getWordArray();
for(String word : secondWordArray) {
System.out.println(word);
}
secondWordGroup.getWordSet(secondWordGroup);
firstWordGroup.getWordSet(firstWordGroup);
for (WordGroup pp : secondWordGroup.getWordSet(secondWordGroup)) {
System.out.println(pp);
}
}
}
WordGroup类
package lab5;
import java.util.HashSet;
public class WordGroup {
String word;
//Creates constructor which stores a string value in variable "word" and converts this into lower case using the lower case method.
public WordGroup(String aString) {
this.word = aString.toLowerCase();
}
public String[] getWordArray() {
String[] wordArray = word.split("-");
return wordArray;
}
public void getWordSet(WordGroup secondWordGroup) {
HashSet<String> newHashSet = new HashSet<>();
for (String word : secondWordGroup.getWordArray())
newHashSet.add(word);
for (String word : this.getWordArray())
newHashSet.add(word);
System.out.println(newHashSet);
}
}
格式化您的代码,并添加发生错误,将有助于的指标。 –
当提出问题时,你需要把自己放在我们的鞋子里。如果你没有提供足够的信息,比如哪个语句给你的错误,为什么我们应该花时间在代码中挖掘,看看我们能否猜到?请再次发帖前请访问[帮助],尤其是阅读[问]。 –