问创建对象后，不能从静态上下文引用非静态变量。

EN

package javaapplication13;

public class JavaApplication13 {

    public class BookWord {

        private String wordCharacters;
        private int count;

        public BookWord(String word){
            wordCharacters = word;
        }

        public String getWord() {
            return wordCharacters;
        }

        public int getCount() {
            return count;
        }
    }

    public static void main(String[] args) {
        BookWord existing = new BookWord("Hello");  //  *** Error here ***

        System.out.println("The word is " + existing.getWord());
        System.out.println("The current count is " + existing.getCount());

    }
}