关于combobox：NoSuchElementException in – Java

NoSuchElementException in - Java

我试图从文本文件中读取数据，然后将其存储到数组中。我假设每行有一个单词。我在这里得到NoSuchElementException：

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while (s.hasNextLine())
{
text = text + s.next() +"";
}

这是我的代码：

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public class ReadNote
{
public static void main(String[]args)
{

String text = readString("CountryList.txt");
System.out.println(text);

String[] words = readArray("CountryList.txt");

for (int i = 0; i < words.length; i++)
{
System.out.println(words[i]);
}
}

public static String readString(String file)
{

String text ="";

try{
Scanner s = new Scanner(new File(file));

while (s.hasNextLine())
{
text = text + s.next() +"";
}

} catch(FileNotFoundException e)
{
System.out.println("file not found");
}
return text;
}

public static String[] readArray(String file)
{
int ctr = 0;

try {
Scanner s1 = new Scanner(new File(file));

while (s1.hasNextLine())
{
ctr = ctr+1;
s1.next();
}

String[] words = new String[ctr];
Scanner s2 = new Scanner(new File(file));

for ( int i = 0; i < ctr; i++)
{
words [i] = s2.next();
}

return words;

} catch (FileNotFoundException e) { }
return null;
}
}

这是消息。

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Exception in thread"main" java.util.NoSuchElementException
at java.util.Scanner.throwFor(Scanner.java:862)
at java.util.Scanner.next(Scanner.java:1371)
at ReadNote.readString(ReadNote.java:29)
at ReadNote.main(ReadNote.java:13)