-2
我是新來的Java,並試圖循環通過使用我的主要方法中的增強for循環創建的HashSet。我收到了「void」類型的錯誤,這裏不允許這樣做「,我不太清楚如何解決這個問題。我相信這對大多數人來說可能看起來像是一個簡單的錯誤,但我非常喜歡初學者,爲了這個錯誤是什麼意思,以及如何解決這個問題,將不勝感激下面是代碼:嘗試循環HashSet時不允許在這裏使用void類型?
主類
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類
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);
}
}
格式化您的代碼,並添加發生錯誤,將有助於的指標。 –
當提出問題時,你需要把自己放在我們的鞋子裏。如果你沒有提供足夠的信息,比如哪個語句給你的錯誤,爲什麼我們應該花時間在代碼中挖掘,看看我們能否猜到?請再次發帖前請訪問[幫助],尤其是閱讀[問]。 –